thomas/HandCrankMPPT-Firmware-Rust
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Update voltage divider calculation

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Thomas Kolb 2024-02-15 22:45:40 +01:00
parent a157c1eedd
commit 604c34a147
1 changed files with 2 additions and 2 deletions
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4
src/main.rs
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@ -72,8 +72,8 @@ const SWITCH_PWM_LIMIT: i32 = 93 * SWITCH_PWM_MAX / 100;
fn convert_adc_measurements(raw: &[u16; 4]) -> (i32, i32, i32) fn convert_adc_measurements(raw: &[u16; 4]) -> (i32, i32, i32)
{ {
let iout = (raw[0] as i32 - raw[1] as i32) * 3300 * 20 / 4096 / 28; // *20 = division by 50 mΩ shunt let iout = (raw[0] as i32 - raw[1] as i32) * 3300 * 20 / 4096 / 28; // *20 = division by 50 mΩ shunt
let vout = raw[2] as i32 * 3300 * (47 + 10) / 10 / 4096; let vout = raw[2] as i32 * 3300 * (220 + 10) / 10 / 4096;
let vin = raw[3] as i32 * 3300 * (10 + 10) / 10 / 4096; let vin = raw[3] as i32 * 3300 * (100 + 10) / 10 / 4096;
(vin, vout, iout) /* units: mV, mV, mA */ (vin, vout, iout) /* units: mV, mV, mA */
} }