display.drawString(0 , 18 , "Rx "+ packSize + " bytes"); For battery voltage measurement on the Heltec boards, use GPIO 13 or 37 depending on the version of the board you have. https://github.com/lyusupov/SoftRF/wiki/Prime-Edition-MkII, https://github.com/Xinyuan-LilyGO/LilyGO-T-Beam. In brief, less bandwidth and higher spreading factor means slower datarate but longer range. With good RF circuit design and low-power design. void setup(){ So far, I had no luck in getting proper voltage readings from one of the ADC inputs. I recently received the Heltec Esp32 w/Lora.wifi, oled, got two. It is important to remember that the ESP32 has three chips: Flash memory, Espressif, which is the processor of Tensilica, and also there is a USB to Serial Ttl, of Silicon Labs. If you are looking to buy an ESP32, I recommend this brand because it has a Lib inside the Arduino IDE, which makes handling easier. Read More LoRa(PHY) Benefits of LoRa LoRaWAN Standard Products Applications Applications Overview Comparing the traditional ESP32 with ESP32 LoRa, we again point out that the traditional has three chips, while LoRa has four. Along this path there are no buildings that stand directly in the way however there are quite a few trees. PDF ESP32PICOD4 - Espressif Systems through the early years, the idea that a single chip device can now connect to Wi-Fi and the Internet is still somewhat akin to magic. } Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching). Here, I show some characteristics of the LoRa technology and the LoRaWAN protocol. a member for this project? logo(); 220.78 kB - The bandwidth setting of the LoRa modulator was set to 125kHz and forward error correction was set at 8/4 for all tests. Sign up Product Actions. Heltec joint R&D library (under construction). The newly launched V3 version has the same pin sequence as the V2 version and retains Wi-Fi, BLE, LoRa, OLED display, and other functions. This path has less multipath opportunities but greater signal attenuation than the first path. If the modem bandwidth selector in register RH_RF95_REG_1D_MODEM_CONFIG1 is invalid, returns 0. i know this question is coming outta left field but Im really new at LoRa and got the ttgo with oled and attempted to load a arduino sketch to a pair and ever since Ive not been able to get them to communicate. Forest Machinery display.clear(); // Definio dos pinos I can't download it from Baidu. I also intend to do this using my drone, which travels up to 7 kilometers, to see how far I can get. You are about to report the project "ESP32 - LoRa - OLED Module", please tell us the reason. //incrementa uma unidade no contador The TTGO LoRa32 board is an ESP32 with a built-in SX1276 LoRa chip and a SSD1306 OLED display. For a full featured battery-powered LoRa board, with GPS, thats pretty reasonable. 10/23/2017 at 12:18, JPEG Image - Since its launch in 2017, it has been loved by developers and makers. Terms of Use You can track your package thro these link : C: \ Program Files (x86) \ Arduino \ hardware \ heltec \ esp32 \ libraries \ LoRa \ examples \ OLED_LoRa_Sender. We then have a hub, the Gateway, which receives all these signals. The newly launched V3 version has the same pin sequence as the V2 . #define BAND 915E6 //Frequencia do radio - podemos utilizar ainda : 433E6, 868E6, 915E6 So dont make. Add to cart. It makes it less informative and harder to understand. PDF WIRELESS, SENSING & TIMING DATASHEET - Adafruit Industries Linked In. Still relatively expensive in this day and age of almost free computing, one thing Im looking out for is how the pricing of long-range wireless capable boards supporting the different competitors are trending. I am pretty curious how much this will affect the range. You can buy these devices at DigitSpace.com. For all of the tests the transmitter was set to a center frequency of 433.000mHz with the transmitter power level of 20dBm. We initiate LoRa communication and configure the pins that will be used by the library. Thanks for anyhelp, highly appreciated. Integrated CP2102 USB to serial port chip, convenient for program downloading, and debugging information printing. I chose two signal paths for evaluation. Round mark. #define MOSI 27 // GPIO27 -- SX127x's MOSI RadioHead library: custom modem configurations. 4 - March 2015 2015 Semtech Corporation The SX1276/77/78/79 transceivers feature the LoRaTM long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current . Contents. In the assembly, in the example of Heltec, with the ESP32 plus the SX1276 chip, we have Sender sending the data packet to the Receiver. LoRa.print("hello "); Germany, Bavaria, Nuremberg, Civil Registration - FamilySearch Hello, thank you for sharing your project. Readme Stars. 1.81 2017-11-15 RH_CC110, moved setPaTable() from protected to public. I have attached my current sample code to send and receive. Seltmann Weiden Mozart mark. RH_RF95 modem config Bw125Cr48Sf4096 altered to enable slow daat rate in register 26 as suggested by Dieter Kneffel. Xinyuan-LilyGO/LilyGo-LoRa-Series: LILYGO LoRa Series examples - GitHub Here, we configure the information that will appear on the display. Hardware. The second signal path is a more difficult one in terms of RF penetration. Absolutely, yes. Knowing some Spanish helps. while (1); The onboard 4Mt bytes (32Mt bit) Flash wi-fi antenna, 0.96 inch oled display, lithium battery charging circuit, CP2102 interface and USB serial chip, the perfect support for Arduino development environment, can be used for program checking and product development is very easy and fast. ESP32 3.08 kB - ESP32 is designed for mobile, wearable electronics, and Internet of Things (IoT) applications. This product cant meet your needs? You can reach me at alasdair@babilim.co.uk. Rear-mounted mowers - disc without conditioner, Structural and Civil Engineering Equipment, Tower Cranes - Trolley Boom - Top-slewing, Worlds Top 10 biggest mining dump trucks, Worlds Top 10 largest hydraulic excavators, Top 10 Most Popular Mini Excavators on LECTURA Specs. ESP32 Series Datasheet Including: ESP32-D0WD-V3 ESP32-D0WDR2-V3 ESP32-U4WDH ESP32-S0WD-NotRecommendedforNewDesigns(NRND) ESP32-D0WD-NotRecommendedforNewDesigns(NRND) ESP32-D0WDQ6-NotRecommendedforNewDesigns(NRND) ESP32-D0WDQ6-V3-NotRecommendedforNewDesigns(NRND) Version4.2 Which is where the new TTGO T-Beam tracker board comes into the picture. A "dataless" Wi-Fi positioning system that can be used anywhere GPS can't. The boards LoRa support comes in three different variants, operating at 433MHz, 868MHz, and 915MHz depending on region, with an included SMA antenna. lora esp32-arduino Resources. LILYGO TTGO T-Beam V1.1 ESP32 433/868/915/923Mhz WiFi Wireless https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series. The ESP32-PICO-D4 is a System-in-Package (SiP) module that is based on ESP32, providing complete Wi-Fiand Bluetoothfunctionalities. The data are shown below: While the reported signal levels and SNR figures all appeared to improve as I increased the spreading factor, I didn't see the amount of improvement that I might have been led to expect from reading Semtech's marketing literature. Product Description Working voltage: 1.8~3.7v Acceptable current10~14mA Transmit current: 120mA@+20dBm 90mA@+17dBm 29mA@+13dBm Operating frequency: 433/470MHz (433HMz version) / 868M/915M (868MHz Version) Transmit power: +20dBm Receive sensitivity :-139dBm@LoRa &62.5Khz&SF=12&146bps -136dBm@LoRa &125Khz&SF=12&293bps //indica no display que inicilizou corretamente. Learn More. display.drawString(0, 0, rssi); Apparent errors may be due to the transmitter, the receiver or both. 305 stars Watchers. Sign up. The rear of the TTGO T-Beam with a compartment for a 18650 battery. , and the drop in price, of computing than the ESP8266 and ESP32 from Espressif. I'm using a fork of driver by yanbe, https://github.com/morganrallen/libssd1306-esp-idf-i2c This worked fine on another device with the same screen but just on different pins. In the green head device, the Receiver, we have the signal that is at -9dB. 34 watching . Connectivity 802.11 b/g/n WiFi up to 150 Mbps + Bluetooth 4.2 Classic and LE with "3D antenna" soldered on PCB LoRa 433, 868, and 915 MHz versions with SMA antenna Transmit current - 120 mA @ +20dBm; 90 mA @ +17dBm; 29mA @ +13dBm Receive sensitivity -139dBm with LoRa & 62.5Khz & SF=12 & 146bps -136dBm with LoRa & 125Khz & SF=12 & 293bps Nothing shows the increasing capability, and the drop in price, of computing than the ESP8266 and ESP32 from Espressif. By clicking Register, you confirm that you accept our Terms & Conditions. 10/18/2017 at 14:16, x-arduino - We start LoRa here with the specific frequency, we point the correct initialization in the display, and we enable LoRa to receive the data sent by Sender. TTGO LoRa32 SX1276 pins. You should Mobile Sawmills on Step 11. RF modem configured for long range transmission on 434.5MHz, Example LoRa receiver sketch showing received packets, RSSI and SNR on integrated OLED, [new!] T, Product Description TTGO ESP32 LORA OLED and SDCARD Module V2.0 / 433MHz, 868MHz and 915MHZ, esp32 lora oled module - 868/915MHz Version, TTGO ESP32 LoRA Module with NEO-6M GPS and 18650 Battery holder. 10/18/2017 at 14:04, x-arduino - Fernando, thanks for your tutorials. Product: In this article, we are going to discuss LoRaWAN, a network that travels with little energy. Both transmitter and received are within very close proximity (on the same workbench) and I get a received RSSI of -76 with the 915Mhz units and -61 with the 433Mhz units. Instant dev environments . Log In. I know that the telemetry radio sends data using a MAVLink protocol but maybe there is a way to decode the data and show it in the display of the . pinMode(16,OUTPUT); //RST do oled Acceptable current10~14mA A quick look at gqrx confirmed the desired bandwidth and exact identical/matching frequency. //print: adiciona os dados no pacote display.clear(); (4.00), Documentation: orders over 150 euros may generate tax, which needs to be borne/handled by the customer, the local policy shall prevail. The case also offers space for a small LiPo battery. Under the device, we can see the information on the SX1276 chip. //indica no display que inicilizou corretamente. I believe that this may have been the result of multipath distortion since it affected path 1 more than path 2 and was worse adjacent to buildings beside the path. Features:TheLILYGO Mini E-paper core is based on the ESP32 main control chip +1.02 inch e-paper programmable, developable, and expandable product concept. LoRa.endPacket(); //retorno= 1:sucesso | 0: falha Reported by Guilherme Jardim. LoRa.beginPacket(); I tried different Spreading Factors but that did not make a difference. LILYGO TTGO T-Beam V1.1 ESP32 433/868/915/923Mhz WiFi Wireless Bluetooth Module GPS NEO-6M SMA LORA 32 18650 Battery Holder, No shipping info available.Set destination country to see options, Our Tindie Guarantee protects your purchase from fraud. Bauscher mark. An external GPS Antenna is attached via U-FL and the LoRa Module now has an SMA Connector for the Antenna. WIFI It uses unlicensed radio spectrum in the Industrial, Scientific, and Medical (ISM) bands to enable low power and wide area communication between remote sensors and gateways connected to the network. About. View code README.md. 1 Review Product Demonstration Product Features ESP32 Lastest ESP32 Version: REV1 WIFI bluetooth 4MB PSRAM 8MB Flash 3D Antenna LORA Product Description Working voltage: 1.8~3.7v Acceptable current10~14mA Transmit current: 120mA@+20dBm 90mA@+17dBm 29mA@+13dBm Operating frequency: 433/470MHz (433HMz version) /868M/915M (868MHz version) Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal spring antenna, reserved IPEX (U.FL) interface for LoRa use. Keep up the good work Fernando! //imprime o logo na tela Lithium battery charge and discharge circuit, when the battery is full, the blue LED will stop working. The antennas used were the 'coil spring' antennas supplied with the modules. Now this is a complete solution for a standalone GPS-Tracker based on LoRa: TTGO T-Beam ESP32, LoRa with NEO-6M GPS and 18650 Battery holder. on Introduction. ');while (1);}//LoRa.onReceive(cbk);LoRa.receive ();Serial.println ('init ok');display.init ();display.flipScreenVertically ();display.setFont (ArialMT_Plain_10);delay (1500);}void loop () {int packetSize = LoRa.parsePacket ();if (packetSize) {cbk (packetSize); }delay (10);}. Frameworks. //RX packSize : segunda linha We set up a packet to send Sender to the Receiver. ESP32 Publish Data to Cloud without Wi-Fi (TTGO T-Call ESP32 SIM800L) Note:This product does not include the battery. TTGO LoRa32 SX1276 OLED Board with Arduino IDE - Microcontrollers Lab Can you got signal on longer distance? Have you tried reducing it as well? If you have special requirements for orders or products, please contact us in advance. In the same display, Rx9 bytes indicate the packet size and Hello is the string that the yellow cable device, Sender, is sending. I also try it but can got signal only about 1m distance (I have 4 boards). It uses unlicensed radio spectrum in the Industrial, Scientific, and Medical (ISM) bands to enable low power and wide area communication between remote sensors and gateways connected to the network. WithOLED(Click on the image to go to the OLED purchase link. }. We'll let you know when the seller adds shipping rates for your country. By the time I got to sf = 11 there were practically no packets being received while moving but reception would resume immediately when I stopped and held the receiver still. Destined module with ceramic antenna, signal super Overview In the last couple of years, there is a number of communication technologies available for interaction between IoT devices. a Bluetooth to LoRa bridge for a long range bluetooth chat. can you detail to me your parameters : 1/ #define spreadingFactor 9// #define SignalBandwidth 62.5E32/ #define SignalBandwidth 31.25E33/ #define preambleLength 84/ #define codingRateDenominator 8. I just gave it a try but besides advertising its name via BLE there is nothing else supported yet :(. https://github.com/cyberman54/ESP32-Paxcounter, https://github.com/CongducPham/LowCostLoRaGw, http://www.moz8.com/thread-172414-1-1.html?_dsign=4feb6948, https://www.ibm.com/developerworks/cn/iot/library/iot-lpwan-lora-nodemcu-dhtsensors/, https://hackaday.io/project/162256-esp32-8266-wifi-instant-camera, http://www.morserino.info/morserino-32.html, https://www.rosietheredrobot.com/2019/04/lora-wan-kenobi.html, https://www.rosietheredrobot.com/2020/02/battle-of-bletain.html, https://github.com/things4u/ESP-1ch-Gateway-v5.0, https://robotzero.one/heltec-wifi-lora-32/. My project requires about 500-600 feet range with a small amount of data being transmitted every second.Thanks for your info and guidance. ESP32 LoRaWAN TTGO To perform the test, we took the chips from TTGO, put on an antenna and battery, and walked out. //retorno: tamanho do pacote em bytes. So dont make the mistake of substituting in the more common AA battery to try and power the board. Check theLoRa frequencies used in your country. Now, with dynamically adjusting the frequency based on the reported difference, I am able to keep the offset around +/- 10Hz. You can easily configure your ESP32 with a LoRa chip to transmit and receive data reliably at more than 200 meters distance (you can get better results depending on your enviroment and LoRa settings). Welcome to contact with us to discuss or ask about our products, glad to do business with you. So I do get some reading on ADC pin 32 and 33 but it does not really make sense so far. RadioHeads 'frequencyError()' tells me, the relative offset between my modules to be roughly approx. LoRa.beginPacket(); (: TTGO), Flipping the board over there is a battery holder for, , and while a 18650 sort of looks like a standard AA battery, its significantly different. LoRa.begin (868)) {Serial.println ('Starting LoRa failed! Already have an account? Not hard to understand at all and I don't even speak the language. ESP32-TTGO-T3. //essa funo apenas imprime o logo na tela do displayvoid logo() The fourth, known as. It has many features of the state-of-the-art low power chips, including fine resolution clock gating, power modes, and dynamic power scaling. To make the observations I walked both paths while watching the received packets on the OLED screen of my second TTGO module. Without any matching, I had a deviation of approx. #define MISO 19 // GPIO19 -- SX127x's MISO The SSD1306 is connected to the ESP32 using I2C protocol. Copyright 1984-2023 LECTURA GmbH Verlag + Marketing Service Alle Rechte vorbehalten. Serial.print(thisPin, DEC); Serial.print(" = "); Serial.print(ADCpins[thisPin], DEC); Serial.print(" => "); VBAT = ADC_divider * (float)(analogRead(ADCpins[thisPin])) / 1024.0; // LiPo battery voltage in volts Serial.print("Vbat = "); Serial.print(VBAT); Serial.println(" Volts"); }. In order to keep the product appearance as much as possible The mini is based on the 1.02 inch e-paper screen size, and theshell is designed based on this LILYGO& pauls_3d_things T-micro32 Open-Smartwatch is designed by pauls_3d_things,around the micro size of LILYGO T-micro32 module based on ESP32, with circular LCD,power battery charge and discharge management circuit, USB to TTL program upload circuit, software and hardware All open source.Parameters:1.LILYGO T-micro32 module2.4MB FLASH3.USB to TTL CH340E4.1.3 inch 240x240 resolution ci LILYGO T-Display-S3 ESP32-S3 1.9 inch ST7789 LCD Display Development Board WIFI Bluetooth5.0 Wireless Module 170*320 Resolution(2), LILYGO T-Display-S3 ESP32-S3 1.9 inch ST7789 LCD Display Development Board WIFI Bluetooth5.0 Wireless Module 170*320 Resolution(1), LILYGO Mini E-Paper Core 1.02 Inch TF Card ESP32 PICO / T- U2T USB to TTL Downloader, LILYGO & pauls_3d_things Open-Smartwatch T-micro32 ESP32 WIFI/Bluetooth for arduino(1)(1)(1)(1)(1). LoRa.print(counter); 4 years ago Seltmann US Zone mark. Please post your code! Semtech's LoRa chipsets connect sensors to the Cloud and enable real-time communication of data and analytics that can be utilized to enhance efficiency and productivity. I have a vague recollection of a similar error on a different ESP32 device but cannot recall a solution. Check the LoRa frequencies used in your country. Round Bauscher Weiden mark registered in 1921 and used after take over by Lorentz Hutschenreuther. For a full featured battery-powered LoRa board, with GPS, thats pretty reasonable. The design focuses on low power consumption and the basic requirements of MINI appearance. The value remains more or less the same when I remove the battery A brief application note if you are using the RadioHead library. With OLED (Click on the image to go to the OLED purchase link.) This is Heltec's model, which is at 433 MHz and works very well. Learn more about this board: [] By clicking the button Understand & proceed you additionally consent to the use of cookies that allow for personalized retargeting ads on third party websites based on your interests in accordance with our privacy policy. //parsePacket: checa se um pacote foi recebido https://www.17track.net/en --https://www.yuntrack.com/--- http://track.4px.com/#/ --- http://m-track.4px.com/#/. Project owner will be notified upon removal. To this end I placed the module programmed as the transmitter on my desk right next to my computer. and } display.setTextAlignment(TEXT_ALIGN_LEFT); At least, this can be used to broadcast some sort of data - e.g. ESP32 with LoRa using Arduino IDE | Random Nerd Tutorials The pins used are: SX1276 Pins - LoRa module GPS modules NEO-6M, 3V-5V power supply Universal We would like to show you a description here but the site won't allow us. Have you tried connecting the sensor to the same i2c bus (SDA: 4, SDL: 15) in use by the oled? About: Do you like technology? KoiBoard - Fully Customizable Mechanical Keyboard With a Koi! While location tracking is provided by the onboard u-blox NEO-6M GPS module with ceramic antenna. The only way to become a Tindarian is by being a nice & active member of the Tindie community! LoRaWAN is a protocol specification built upon the LoRa technology developed by the LoRa Alliance. (lib at: https://github.com/espressif/arduino-esp32/ ). The example code I'd glanced at before digging into the driver, also took care of this. display.clear(); Check your inbox, as well as your spam box, among others. The board's LoRa support comes in three different variants, operating at 433MHz, 868MHz, and 915MHz depending on region, with an included SMA antenna. Its not quite that simple, at least not yet, when it comes things. display.drawStringMaxWidth(0 , 39 , 128, packet); display.drawString(0, 0, "LoRa Initial success! #define SCK 5 // GPIO5 -- SX127x's SCK at, http://www.nicerf.com/Upload/ueditor/files/2017-05-22/SX1276_7_8-402ece57-7162-4950-9b1b-92a1669b7a89.pdf. Packets consisted of my Amateur Radio callsign followed by a space, a # character, and a sequential number. Today, we have two .INO programs, the Sender and the Receiver. With data backup battery, Link:https://github.com/lyusupov/SoftRF/wiki/Prime-Edition-MkII, Link:https://github.com/Xinyuan-LilyGO/LilyGO-T-Beam. This is going to enter the TCP / IP network LoRaWAN SSL and then follow to a server side, a more robust thing, IBM Watson, Amazon, in short, the data is processed at another level. Hello data thank you, in fact i want to know if this tuning is specific for one shield or you must do a mesure for each shields (even if the shield is of the same brand/model). on 433MHz ISM Band, lora sender and receiver - receiver showing rssi and snr, Example LoRa sender sketch. The LoRa receiver estimates the frequency offset between the receiver centre frequency and that of the received LoRa signal. 1.79 MB - Just download the files and have it printed yourself. display.drawString(0, 0, "Starting LoRa failed! Municipal Technology . Not a member? String rssi = "RSSI --"; $ 26.00 $ 19.90. There the standards war for low-powered, long-range, but low-bandwidth wireless connectivity is still to come, with the three competitors; NB-IoT, Sigfox, and LoRaWAN squaring off in their respective corners. This function only prints the logo on the display. It uses Open-source SIK firmware and what I would like is to know if is possible to use my TTGO Lora v2 915mhz device and receive the data from this telemetry radio. This also gives you more than enough margin for the doppler effect, if your devices are on the move. I like the Portuguese too. Product Description Categories: ESP Arduino, LoRa Node SKU: ZC-153-868-1 Tags: Arduino ESP32 LoRa Node LoRaWAN. You need at least version 1.80. Sponsors, Facebook Learn More. Royal China Seltmann Weiden Bavaria W. Germany 1954 - 1990 mark, pattern Sweat Pea. "); is possible to convert this to ax25 ? There are a couple of libraries for the ssd1306 you can choose from: https://github.com/adafruit/Adafruit_SSD1306, https://github.com/squix78/esp8266-oled-ssd1306. }. Follow my channel on Youtube and my Blog. When getting a LoRa board, make sure you choose the right frequency for your country. 2,847 Orders. The first is straight down the sidewalk outside my window 1500ft (457m) to the entrance of the performing arts center. if (packetSize) { I am from Toronto and have set up two separate LoRa point to point networks for comparison. display.drawString(0, 0, "Sending packet: "); Contact In fact this was the only - slow data rate for predefined ModemConfig with Sf 4096 enabled, http://www.airspayce.com/mikem/arduino/RadioHead/index.html. Contact Hackaday.io Product Features www.lectura-specs.com These can be found in RH_RF95.cpp: The first of these three bytes is written to configuration register 0x1d, the second to 0x1e and the third into 0x26. 4MB PSRAM There are also two buttons on the boardone is for power, but the second connected to the GPIO39 pin of the ESP32. With IO port touch screen touch signal input, you need to add the 100nF pull-down capacitor to this pin! //inicializa o Lora com a frequencia especfica. LoRa.setPins(SS,RST,DI00); //configura os pinos que sero utlizados pela biblioteca (deve ser chamado antes do LoRa.begin) You will receive a message confirming your application. cbk(packetSize); //funo responsvel por recuperar o contedo do pacote recebido Here's how to assemble a package and turn on the LED. It makes use of the Arduino LoRa Library by Sandeep Mistry and displays RSSI and SNR of the received data. 0x1e and the third into 0x26. product update: TTGO finally offers a 3d printed case/shell for the ESP32 Lora Module. https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series, https://github.com/HelTecAutomation/Heltec_ESP32, https://resource.heltec.cn/download/WiFi_LoRa32_V3/HTIT-WB32LA(F)_V3_Schematic_Diagram.pdf, https://resource.heltec.cn/download/WiFi_LoRa32_V3/HTIT-WB32LA(F)_V3.png, https://resource.heltec.cn/download/WiFi_LoRa32_V3, https://heltec-automation-docs.readthedocs.io/en/latest/esp32/frequently_asked_questions.html, single-channel LoRa gateway solution: https://github.com/things4u/ESP-1ch-Gateway-v5.0. Maker Advisor is compensated for referring traffic and business to these companies (, Amazon.de - TTGO Lora32 OLED 868 / 915MHz Sx1276 (1 piece), Amazon.co.uk - TTGO Lora32 OLED 868MHz Sx1276 (1 piece), Amazon.com- TTGO Lora32 OLED 868 / 915MHz Sx1276 (1 piece), Banggood - LILYGO TTGO LORA32 915Mhz ESP32 LoRa OLED 0.96 Inch (2 pieces), eBay - TTGO Lora32 OLED 868 / 915MHz Sx1276 (2 pcs), Banggood - LILYGO TTGO LORA32 868Mhz ESP32 LoRa OLED 0.96 Inch (2 pieces), Amazon.es - TTGO Lora32 OLED 868 / 915MHz Sx1276 (1 piece), Aliexpress - TTGO Lora32 OLED 868 / 915MHz Sx1276 (2 pcs), [Review] TTGO LoRa32 SX1276 OLED: Pinout, Specifications, etc, [Guide] TTGO LoRa32 SX1276 OLED Board: Getting Started with Arduino IDE.