/esp32-lang-lab

Comparison of various languages used for developing for ESP32 chips

Primary LanguagePythonMIT LicenseMIT

ESP32 Language Lab

The project is comparing different languages/technologies for ESP32

hello_world

The application outputs "Hello world!". Then it prints information about chip, flash and heap size. Then the application waits for 10 seconds before rebooting.

Results for ESP32:

ESP-IDF C Arduino CircuitPython MicroPython Rust no_std Rust std Toit ESP-IDF ZIG
Chip Target ESP32 n/a n/a n/a n/a n/a
CPU Cores 2 2 n/a n/a n/a n/a
Features WiFi/BTBLE WiFi/BTBLE n/a n/a n/a n/a
Flash size 2MB 1 4MB 8192 (?)2 4 MB n/a n/a
Free heap 300892 237568 113424 164064 179200 3 296028 n/a 300476

Results for ESP32-S2:

ESP-IDF C Arduino CircuitPython MicroPython Rust no_std Rust std Toit ESP-IDF ZIG
Chip Target esp32s2 n/a
CPU Cores 1 1
Features WiFi WiFi
Flash size 2MB 1 4MB
Free heap 246696 229688 70848 2059520 178176 4 246844 248180

Results for ESP32-S3:

ESP-IDF C Arduino CircuitPython MicroPython Rust no_std Rust std Toit ESP-IDF ZIG
Chip Target esp32s3 n/a
CPU Cores 2 2
Features WiFi/BLE WiFi/BLE
Flash size 2MB 1 8MB external
Free heap 386744 36992 150432 332800 388016 389976

Results for ESP32-C3:

ESP-IDF C Arduino CircuitPython MicroPython Rust no_std Rust std Toit ESP-IDF ZIG
Chip Target esp32c3
CPU Cores 1
Features WiFi/BLE
Flash size 2MB 1
Free heap 327840 129808 322556 327124 329700

Results for ESP32-C6:

ESP-IDF C Arduino CircuitPython MicroPython Rust no_std Rust std Toit ESP-IDF ZIG
Chip Target esp32c6 Not supported
CPU Cores 1
Features WiFi/BLE 802.15.4 (Zigbee/Thread)
Flash size 2MB (1.)
Free heap 468852 440316 471068 471208

Results for ESP32-H2:

ESP-IDF C Arduino CircuitPython MicroPython Rust no_std Rust std Toit ESP-IDF ZIG
Chip Target esp32h2 Not supported
CPU Cores 1
Features BLE, 802.15.4 (Zigbee/Thread)
Flash size 2MB 1
Free heap 262644 252924 265060 264824

Results for ESP32-P4:

ESP-IDF C Arduino CircuitPython MicroPython Rust no_std Rust std Toit ESP-IDF ZIG
Chip Target esp32p4 Not supported
CPU Cores 2
Features none
Flash size 2MB 1
Free heap 618680

Notes

Footnotes

  1. Compile time value, not auto-detected. ↩ ↩2 ↩3 ↩4 ↩5 ↩6

  2. Results marked with (?) does not seems to be correct, requires further validation. ↩

  3. Rust no_std does not support non-continuous memory. ESP32 memory contains WiFi part in the middle. ↩

  4. Rust no_std does not support non-continuous memory. The issue is caused by the bootloader on ESP32-S2. ↩