diff options
| author | Daniel Friesel <derf@finalrewind.org> | 2020-03-06 21:55:30 +0100 |
|---|---|---|
| committer | Daniel Friesel <derf@finalrewind.org> | 2020-03-06 21:55:30 +0100 |
| commit | f6e7d4fd15bc1adb538d4b4f053a7ac43f8bb2fe (patch) | |
| tree | 75df2123fd8b53c5a8cee742ec0bec3cfb681dd3 /src/app/ws2812b_uart | |
| parent | ab8595e04c7009ee7fbe33f005fda678baad8ebd (diff) | |
ws2812b_uart: monitor VCC
Diffstat (limited to 'src/app/ws2812b_uart')
| -rw-r--r-- | src/app/ws2812b_uart/main.cc | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/app/ws2812b_uart/main.cc b/src/app/ws2812b_uart/main.cc index b35800a..791e67a 100644 --- a/src/app/ws2812b_uart/main.cc +++ b/src/app/ws2812b_uart/main.cc @@ -226,6 +226,17 @@ int main(void) target_mode = blinkencat.COLOR_RGB; } } + if (ADCSRA & _BV(ADIF)) { + uint8_t adcr_l = ADCL; + uint8_t adcr_h = ADCH; + uint16_t adcr = adcr_l + (adcr_h << 8); + uint16_t vcc = 1100L * 1023 / adcr; + + TIFR1 |= _BV(TOV1); + ADCSRA |= _BV(ADIF); + + kout << "VCC = " << vcc << endl; + } } return 0; |