Stripped down version of the Morserino-32 hardware and software (all original work by OE1WKL, https://github.com/oe1wkl/Morserino-32), for use with a Hailege board '0.96" ESP32 OLED ESP-WROOM-32 ESP32 ESP-32' (H-1-1290, was available on Amazon at https://www.amazon.de/dp/B07YKLSKG6, now distributed by hiletgo.com), which uses an ESP-32-WROOM module.
DISCLAIMER: You are currently on the 'main' branch for this project. If you're looking for basic infos about the used Hailege board and how to get the OLED display working, switch to the 'board_info' branch (https://github.com/dirkbaechle/mini-morserino/tree/board_info) instead, please!
Original usage of GPIO pins:
| GPIO | Type | Basic modes | Function |
|---|---|---|---|
| 37 | I | ADC | Rotary encoder button switch |
| 38 | I | ADC | CLK for rotary encoder |
| 39 | I | ADC | DT for rotary encoder |
| 22 | I/O | GPIO | Speaker output (HF PWM) |
| 23 | I/O | GPIO | Speaker output (LF) |
| 32 | I/O | GPIO, ADC, TOUCH | Right paddle |
| 33 | I/O | GPIO, ADC, TOUCH | Left paddle |
| 0 | I/O | GPIO, ADC, TOUCH | Additonal button switch (Vol/Speed) |
If possible, we don't want to use the pins GPIO4, GPIO5, GPIO12 and GPIO0.
So a new assignment for the Hailege board could be:
| GPIO | Type | Basic modes | Function |
|---|---|---|---|
| 36/SVP | I | ADC | Rotary encoder button switch |
| 25 | I | ADC | DT for rotary encoder |
| 26 | I | ADC | CLK for rotary encoder |
| 16 | I/O | GPIO | Speaker output (HF PWM) |
| 13 | I/O | GPIO | Speaker output (LF) |
| 2 | I/O | GPIO, ADC, TOUCH | Right paddle |
| 14 | I/O | GPIO, ADC, TOUCH | Left paddle |
| 15 | I/O | GPIO, ADC, TOUCH | Additonal button switch (Vol/Speed) |
The following functionality has been removed from the original Morserino-32 sources, due to hardware and memory constraints:
- Lora support
- Larger fonts
- Koch learning method
- Battery/voltage status display
- Audio decoder input, including the Goertzel filter
- Audio line-out
- TX keyer line
- Sensor paddle support