Arduino Uno R4 WiFi

• ArduinoCore-renesas

  3 90 9.4 C
  

it's all open source, you can see part of it here https://github.com/arduino/ArduinoCore-renesas

you can use GCC with https://github.com/renesas/fsp if you want to go very low level.

• fsp

  3 177 5.4 C

  Flexible Software Package (FSP) for Renesas RA MCU Family (by renesas)

  

it's all open source, you can see part of it here https://github.com/arduino/ArduinoCore-renesas

you can use GCC with https://github.com/renesas/fsp if you want to go very low level.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• arduino-esp32

  228 12,773 9.7 C++

  Arduino core for the ESP32

  

They've done a good job of hiding the RTOS from you and making most sketches run fine without porting, but you're still running as a task under the RTOS, yielding between loop() calls[1]. This leads to mysterious timing issues if you aren't aware of it[2]

It doesn't appear that the Arduino core for the Renesas chip is using the RTOS, at least by default -- its main loop is literally doing while (1) { loop(); }, similar to how the AVR core works. [3, 4]

  1. https://github.com/espressif/arduino-esp32/blob/72c41d09538663ebef80d29eb986cd5bc3395c2d/cores/esp32/main.cpp#L45

• ArduinoCore-avr

  132 1,161 3.0 C

  The Official Arduino AVR core

  

4. https://github.com/arduino/ArduinoCore-avr/blob/eabd762a1edcf076877b7bec28b7f99099141473/cores/arduino/main.cpp#L46

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