A place for all the arduino code I write.
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Starbeamrainbowlabs 438b28f1b5
Document protocol spec in comment
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Examples Add HelloWorld example vor 11 Monaten
I2cScanner Add missing \r in I2C scanner vor 3 Jahren
RamLocationTest Add RAM location test vor 1 Jahr
SizeOfTest [SizeOfTest] Add long vor 2 Jahren
bme280 Document protocol spec in comment vor 11 Monaten
deepsleep Add ESP deep sleep test vor 2 Jahren
dht22 Write ESP DHT22 demo vor 1 Jahr
dht22-esp8266 Write ESP DHT22 demo vor 1 Jahr
eeprom Add eeprom tests vor 2 Jahren
eeprom-search Add eeprom tests vor 2 Jahren
flashLed Corect circuit order in comment vor 4 Jahren
soil-sensor Test soil sensor vor 2 Jahren
.gitmodules Write simple display-based system to display temp & humidity with the NodeMCU 0.9 vor 1 Jahr
LICENSE initial commit vor 4 Jahren
README.md Add more detail to LMIC library info section vor 2 Jahren



A place for all the Arduino code I write.

A collection of projects and example code for various Arduino-related devices.

My goal here is to make sure that everything is documented clearly enough that it should be a fairly easy and frustration-free experience picking up a project from here and running it. To that end, if you experience any difficulties - please contact me! Methods to get in touch are detailed on my website.


For some reason, the Arduino IDE is absolutely ridiculous in that it keeps libraries globally installed. Some of the projects and examples here require that libraries are installed to work, unfortunately (I wasn't able to get them to function any other way :-/). To that end, I've listed below the libraries and where to get them from that I've used.


Used in some of the low-level LoRa test programs. This requires cloning the RadioHead repository into the Arduino IDE libraries folder, which is by default located at ~/Arduino/libraries. Here's the clone command in question:

git clone https://github.com/PaulStoffregen/RadioHead.git

Execute it in the Arduino libraries folder as mentioned above.


Required for the LoRaWAN projects. Installable through the library manager if you search LMIC.

In addition, for some reason the author of this library has made a very bad design choice, in that you've got to alter the original library code in order for it to work. Navigate to the Arduino IDE's library folder (by default ~/Arduino/libraries), enter the MCCI_LoRaWAN_LMIC_library directory, and then open src/lmic/config.h for editing. You want to uncomment line 50, which should read like so once uncommented:

#define CFG_sx1276_radio 1

Useful Resources

  • Connect with WPA - What seems like a reasonaly good tutorial on how to get a Wemos to connect via WiFi. We'll need a TCP tutorial later on down the line though.