diff options
| -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; |