Table of Contents
ESP32
ESP32 Datasheet
ESP32 Projects and Applications
Low Power
Other
DHT22
LoRaWAN (TTN) with ESP32
LMiC Documentation
Heltec WIFI LoRa 32 (ESP32, SX127X, OLED)
Schematic: heltec ESP32, LoRa 868 MHz
Pinout
Important Sources
BLE
Alternatives
TTGO T-Beam: ESP32 + LoRa + GPS
ESP32
ESP32 Datasheet
https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf
ESP32 Projects and Applications
Low Power
https://randomnerdtutorials.com/power-esp32-esp8266-solar-panels-battery-level-monitoring/
https://lastminuteengineers.com/esp32-sleep-modes-power-consumption/
https://www.instructables.com/id/ESP32-Deep-Sleep-Tutorial/
Other
https://randomnerdtutorials.com/learn-esp32-with-arduino-ide/
DHT22
Tutorial:
https://techtutorialsx.com/2018/04/18/esp32-arduino-getting-temperature-from-a-dht22-sensor/
Library:
https://github.com/beegee-tokyo/DHTesp
https://randomnerdtutorials.com/esp32-dht11-dht22-temperature-humidity-web-server-arduino-ide/
https://github.com/RuiSantosdotme/Random-Nerd-Tutorials/blob/master/Projects/ESP32/dht22_web_server.ino
LoRaWAN (TTN) with ESP32
Tutorial:
https://www.thethingsnetwork.org/labs/story/heltec-lorawan-gps-quick-start
LMiC Documentation
https://github.com/mcci-catena/ibm-lmic/blob/master/doc/LMiC-v1.6.pdf
Heltec WIFI LoRa 32 (ESP32, SX127X, OLED)
https://heltec.org/project/wifi-lora-32/?lang=en
Schematic: heltec ESP32, LoRa 868 MHz
WIFI_LoRa_32(868-915version)Schematic_diagram.PDF
Pinout
V1:
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/raw/master/PinoutDiagram/WIFI%20LoRa%2032%20.pdf
V2:
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/raw/master/PinoutDiagram/WIFI%20LoRa%2032(V2)%20.pdf
Important Sources
http://www.heltec.cn/project/wifi-lora-32/?lang=en
https://www.instructables.com/id/ESP32-Lora-Changing-Frequency/
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/tree/master/esp32/libraries/LoRa
https://github.com/HelTecAutomation/heltec_lmic
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/blob/master/README.md#instructions
https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/blob/master/InstallGuide/windows.md
http://heltec.diytrade.com/sdp/2044581/4/pl-6785993/0.html
https://hackaday.io/project/27791/logs
https://hackaday.io/project/27791-esp32-lora-oled-module
https://www.hackerspace-ffm.de/wiki/index.php?title=Heltec_Wifi_LoRa_32
https://www.hackster.io/rayburne/lora-and-the-esp32-6ce9ba
BLE
What are GAP, GATT, Server, Client, Master, Slave in BLE?
https://devzone.nordicsemi.com/f/nordic-q-a/71/what-is-a-client-and-server-in-ble
Alternatives
TTGO
TTGO and Heltec comparison:
https://www.youtube.com/watch?v=CJNq2I_PDHQ
Seems to be technically completely identical.
TTGO T-Beam: ESP32 + LoRa + GPS
https://github.com/LilyGO/TTGO-T-Beam
https://blog.hackster.io/the-ttgo-t-beam-an-esp32-lora-board-d44b08f18628
https://www.youtube.com/watch?v=fK4YQROD9Ps