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Last active September 4, 2023 08:22
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Sketch with IP5306 integration
#include "Arduino.h"
#include "Wire.h"
/*
** IP5306 Power Module
*/
/* M5 Defaults
KeyOff: Enabled
BoostOutput: Disabled
PowerOnLoad: Enabled
Charger: Enabled
Boost: Enabled
LowBatShutdown: Enabled
ShortPressBoostSwitch: Disabled
FlashlightClicks: Double Press
BoostOffClicks: Long Press
BoostAfterVin: Open
LongPressTime: 2s
ChargeUnderVoltageLoop: 4.55V
ChargeCCLoop: Vin
VinCurrent: 2250mA
VoltagePressure: 28mV
ChargingFullStopVoltage: 4.17V
LightLoadShutdownTime: 32s
EndChargeCurrentDetection: 500mA
ChargeCutoffVoltage: 4.2V
*/
#define IP5306_REG_SYS_0 0x00
#define IP5306_REG_SYS_1 0x01
#define IP5306_REG_SYS_2 0x02
#define IP5306_REG_CHG_0 0x20
#define IP5306_REG_CHG_1 0x21
#define IP5306_REG_CHG_2 0x22
#define IP5306_REG_CHG_3 0x23
#define IP5306_REG_CHG_4 0x24
#define IP5306_REG_READ_0 0x70
#define IP5306_REG_READ_1 0x71
#define IP5306_REG_READ_2 0x72
#define IP5306_REG_READ_3 0x77
#define IP5306_REG_READ_4 0x78
#define IP5306_GetKeyOffEnabled() ip5306_get_bits(IP5306_REG_SYS_0, 0, 1)
#define IP5306_SetKeyOffEnabled(v) ip5306_set_bits(IP5306_REG_SYS_0, 0, 1, v)//0:dis,*1:en
#define IP5306_GetBoostOutputEnabled() ip5306_get_bits(IP5306_REG_SYS_0, 1, 1)
#define IP5306_SetBoostOutputEnabled(v) ip5306_set_bits(IP5306_REG_SYS_0, 1, 1, v)//*0:dis,1:en
#define IP5306_GetPowerOnLoadEnabled() ip5306_get_bits(IP5306_REG_SYS_0, 2, 1)
#define IP5306_SetPowerOnLoadEnabled(v) ip5306_set_bits(IP5306_REG_SYS_0, 2, 1, v)//0:dis,*1:en
#define IP5306_GetChargerEnabled() ip5306_get_bits(IP5306_REG_SYS_0, 4, 1)
#define IP5306_SetChargerEnabled(v) ip5306_set_bits(IP5306_REG_SYS_0, 4, 1, v)//0:dis,*1:en
#define IP5306_GetBoostEnabled() ip5306_get_bits(IP5306_REG_SYS_0, 5, 1)
#define IP5306_SetBoostEnabled(v) ip5306_set_bits(IP5306_REG_SYS_0, 5, 1, v)//0:dis,*1:en
#define IP5306_GetLowBatShutdownEnable() ip5306_get_bits(IP5306_REG_SYS_1, 0, 1)
#define IP5306_SetLowBatShutdownEnable(v) ip5306_set_bits(IP5306_REG_SYS_1, 0, 1, v)//0:dis,*1:en
#define IP5306_GetBoostAfterVin() ip5306_get_bits(IP5306_REG_SYS_1, 2, 1)
#define IP5306_SetBoostAfterVin(v) ip5306_set_bits(IP5306_REG_SYS_1, 2, 1, v)//0:Closed, *1:Open
#define IP5306_GetShortPressBoostSwitchEnable() ip5306_get_bits(IP5306_REG_SYS_1, 5, 1)
#define IP5306_SetShortPressBoostSwitchEnable(v) ip5306_set_bits(IP5306_REG_SYS_1, 5, 1, v)//*0:disabled, 1:enabled
#define IP5306_GetFlashlightClicks() ip5306_get_bits(IP5306_REG_SYS_1, 6, 1)
#define IP5306_SetFlashlightClicks(v) ip5306_set_bits(IP5306_REG_SYS_1, 6, 1, v)//*0:short press twice, 1:long press
#define IP5306_GetBoostOffClicks() ip5306_get_bits(IP5306_REG_SYS_1, 7, 1)
#define IP5306_SetBoostOffClicks(v) ip5306_set_bits(IP5306_REG_SYS_1, 7, 1, v)//*0:long press, 1:short press twice
#define IP5306_GetLightLoadShutdownTime() ip5306_get_bits(IP5306_REG_SYS_2, 2, 2)
#define IP5306_SetLightLoadShutdownTime(v) ip5306_set_bits(IP5306_REG_SYS_2, 2, 2, v)//0:8s, *1:32s, 2:16s, 3:64s
#define IP5306_GetLongPressTime() ip5306_get_bits(IP5306_REG_SYS_2, 4, 1)
#define IP5306_SetLongPressTime(v) ip5306_set_bits(IP5306_REG_SYS_2, 4, 1, v)//*0:2s, 1:3s
#define IP5306_GetChargingFullStopVoltage() ip5306_get_bits(IP5306_REG_CHG_0, 0, 2)
#define IP5306_SetChargingFullStopVoltage(v) ip5306_set_bits(IP5306_REG_CHG_0, 0, 2, v)//0:4.14V, *1:4.17V, 2:4.185V, 3:4.2V (values are for charge cutoff voltage 4.2V, 0 or 1 is recommended)
#define IP5306_GetChargeUnderVoltageLoop() ip5306_get_bits(IP5306_REG_CHG_1, 2, 3) //Automatically adjust the charging current when the voltage of VOUT is greater than the set value
#define IP5306_SetChargeUnderVoltageLoop(v) ip5306_set_bits(IP5306_REG_CHG_1, 2, 3, v)//Vout=4.45V + (v * 0.05V) (default 4.55V) //When charging at the maximum current, the charge is less than the set value. Slowly reducing the charging current to maintain this voltage
#define IP5306_GetEndChargeCurrentDetection() ip5306_get_bits(IP5306_REG_CHG_1, 6, 2)
#define IP5306_SetEndChargeCurrentDetection(v) ip5306_set_bits(IP5306_REG_CHG_1, 6, 2, v)//0:200mA, 1:400mA, *2:500mA, 3:600mA
#define IP5306_GetVoltagePressure() ip5306_get_bits(IP5306_REG_CHG_2, 0, 2)
#define IP5306_SetVoltagePressure(v) ip5306_set_bits(IP5306_REG_CHG_2, 0, 2, v)//0:none, 1:14mV, *2:28mV, 3:42mV (28mV recommended for 4.2V)
#define IP5306_GetChargeCutoffVoltage() ip5306_get_bits(IP5306_REG_CHG_2, 2, 2)
#define IP5306_SetChargeCutoffVoltage(v) ip5306_set_bits(IP5306_REG_CHG_2, 2, 2, v)//*0:4.2V, 1:4.3V, 2:4.35V, 3:4.4V
#define IP5306_GetChargeCCLoop() ip5306_get_bits(IP5306_REG_CHG_3, 5, 1)
#define IP5306_SetChargeCCLoop(v) ip5306_set_bits(IP5306_REG_CHG_3, 5, 1, v)//0:BAT, *1:VIN
#define IP5306_GetVinCurrent() ip5306_get_bits(IP5306_REG_CHG_4, 0, 5)
#define IP5306_SetVinCurrent(v) ip5306_set_bits(IP5306_REG_CHG_4, 0, 5, v)//ImA=(v*100)+50 (default 2250mA)
#define IP5306_GetShortPressDetected() ip5306_get_bits(IP5306_REG_READ_3, 0, 1)
#define IP5306_ClearShortPressDetected() ip5306_set_bits(IP5306_REG_READ_3, 0, 1, 1)
#define IP5306_GetLongPressDetected() ip5306_get_bits(IP5306_REG_READ_3, 1, 1)
#define IP5306_ClearLongPressDetected() ip5306_set_bits(IP5306_REG_READ_3, 1, 1, 1)
#define IP5306_GetDoubleClickDetected() ip5306_get_bits(IP5306_REG_READ_3, 2, 1)
#define IP5306_ClearDoubleClickDetected() ip5306_set_bits(IP5306_REG_READ_3, 2, 1, 1)
#define IP5306_GetPowerSource() ip5306_get_bits(IP5306_REG_READ_0, 3, 1)//0:BAT, 1:VIN
#define IP5306_GetBatteryFull() ip5306_get_bits(IP5306_REG_READ_1, 3, 1)//0:CHG/DIS, 1:FULL
#define IP5306_GetOutputLoad() ip5306_get_bits(IP5306_REG_READ_2, 2, 1)//0:heavy, 1:light
#define IP5306_GetLevelLeds() ((~ip5306_get_bits(IP5306_REG_READ_4, 4, 4)) & 0x0F)//LED[0-4] State (inverted)
#define IP5306_LEDS2PCT(byte) \
((byte & 0x01 ? 25 : 0) + \
(byte & 0x02 ? 25 : 0) + \
(byte & 0x04 ? 25 : 0) + \
(byte & 0x08 ? 25 : 0))
int ip5306_get_reg(uint8_t reg){
Wire.beginTransmission(0x75);
Wire.write(reg);
if(Wire.endTransmission(false) == 0 && Wire.requestFrom(0x75, 1)){
return Wire.read();
}
return -1;
}
int ip5306_set_reg(uint8_t reg, uint8_t value){
Wire.beginTransmission(0x75);
Wire.write(reg);
Wire.write(value);
if(Wire.endTransmission(true) == 0){
return 0;
}
return -1;
}
uint8_t ip5306_get_bits(uint8_t reg, uint8_t index, uint8_t bits){
int value = ip5306_get_reg(reg);
if(value < 0){
Serial.printf("ip5306_get_bits fail: 0x%02x\n", reg);
return 0;
}
return (value >> index) & ((1 << bits)-1);
}
void ip5306_set_bits(uint8_t reg, uint8_t index, uint8_t bits, uint8_t value){
uint8_t mask = (1 << bits) - 1;
int v = ip5306_get_reg(reg);
if(v < 0){
Serial.printf("ip5306_get_reg fail: 0x%02x\n", reg);
return;
}
v &= ~(mask << index);
v |= ((value & mask) << index);
if(ip5306_set_reg(reg, v)){
Serial.printf("ip5306_set_bits fail: 0x%02x\n", reg);
}
}
void printIP5306Stats(){
bool usb = IP5306_GetPowerSource();
bool full = IP5306_GetBatteryFull();
uint8_t leds = IP5306_GetLevelLeds();
Serial.printf("IP5306: Power Source: %s, Battery State: %s, Battery Available: %u%%\n", usb?"USB":"BATTERY", full?"CHARGED":(usb?"CHARGING":"DISCHARGING"), IP5306_LEDS2PCT(leds));
}
void printIP5306Settings(){
Serial.println("IP5306 Settings:");
Serial.printf(" KeyOff: %s\n", IP5306_GetKeyOffEnabled()?"Enabled":"Disabled");
Serial.printf(" BoostOutput: %s\n", IP5306_GetBoostOutputEnabled()?"Enabled":"Disabled");
Serial.printf(" PowerOnLoad: %s\n", IP5306_GetPowerOnLoadEnabled()?"Enabled":"Disabled");
Serial.printf(" Charger: %s\n", IP5306_GetChargerEnabled()?"Enabled":"Disabled");
Serial.printf(" Boost: %s\n", IP5306_GetBoostEnabled()?"Enabled":"Disabled");
Serial.printf(" LowBatShutdown: %s\n", IP5306_GetLowBatShutdownEnable()?"Enabled":"Disabled");
Serial.printf(" ShortPressBoostSwitch: %s\n", IP5306_GetShortPressBoostSwitchEnable()?"Enabled":"Disabled");
Serial.printf(" FlashlightClicks: %s\n", IP5306_GetFlashlightClicks()?"Long Press":"Double Press");
Serial.printf(" BoostOffClicks: %s\n", IP5306_GetBoostOffClicks()?"Double Press":"Long Press");
Serial.printf(" BoostAfterVin: %s\n", IP5306_GetBoostAfterVin()?"Open":"Not Open");
Serial.printf(" LongPressTime: %s\n", IP5306_GetLongPressTime()?"3s":"2s");
Serial.printf(" ChargeUnderVoltageLoop: %.2fV\n", 4.45 + (IP5306_GetChargeUnderVoltageLoop() * 0.05));
Serial.printf(" ChargeCCLoop: %s\n", IP5306_GetChargeCCLoop()?"Vin":"Bat");
Serial.printf(" VinCurrent: %dmA\n", (IP5306_GetVinCurrent() * 100) + 50);
Serial.printf(" VoltagePressure: %dmV\n", IP5306_GetVoltagePressure()*14);
Serial.printf(" ChargingFullStopVoltage: %u\n", IP5306_GetChargingFullStopVoltage());
Serial.printf(" LightLoadShutdownTime: %u\n", IP5306_GetLightLoadShutdownTime());
Serial.printf(" EndChargeCurrentDetection: %u\n", IP5306_GetEndChargeCurrentDetection());
Serial.printf(" ChargeCutoffVoltage: %u\n", IP5306_GetChargeCutoffVoltage());
Serial.println();
}
void setup(){
Serial.begin(115200);
Wire.begin();
printIP5306Settings();
}
void loop(){
printIP5306Stats();
delay(1000);
}
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