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Autodetect OLED Controller 1306/1106 (#1317)

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* Autodetect OLED Controller 1306/1106 and make #define NO_SCREEN work again

* fix epaper with autodetect

* Try kicking CI - NFC
This commit is contained in:
Thomas Göttgens
2022-03-24 17:36:56 +01:00
committed by GitHub
parent 47524d58d7
commit cef1614770
8 changed files with 53 additions and 10 deletions
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30
src/debug/i2cScan.h
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@@ -3,6 +3,27 @@
#include <Wire.h>
#ifndef NO_WIRE
uint8_t oled_probe(byte addr)
{
uint8_t r = 0;
uint8_t o_probe = 0;
Wire.beginTransmission(addr);
Wire.write(0x00);
Wire.endTransmission();
Wire.requestFrom((int)addr, 1);
if (Wire.available()) {
r = Wire.read();
}
r &= 0x0f;
if (r == 0x08) {
o_probe = 2; // SH1106
} else if ( r == 0x06 || r == 0x07) {
o_probe = 1; // SSD1306
}
DEBUG_MSG("0x%x subtype probed\n", r);
return o_probe;
}
void scanI2Cdevice(void)
{
byte err, addr;
@@ -17,7 +38,14 @@ void scanI2Cdevice(void)
if (addr == SSD1306_ADDRESS) {
screen_found = addr;
DEBUG_MSG("ssd1306 display found\n");
screen_model = oled_probe(addr);
if (screen_model == 1){
DEBUG_MSG("ssd1306 display found\n");
} else if (screen_model == 2){
DEBUG_MSG("sh1106 display found\n");
} else {
DEBUG_MSG("unknown display found\n");
}
}
if (addr == ST7567_ADDRESS) {
screen_found = addr;