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Add M5PaperDIY board support #281

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Merged
lovyan03 merged 1 commit into from
Jul 22, 2026
Merged

Add M5PaperDIY board support #281

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13 changes: 13 additions & 0 deletions src/M5Unified.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -94,6 +94,7 @@ static constexpr const uint8_t _pin_table_i2c_ex_in[][5] = {
{ board_t::board_M5AtomVoiceS3R,GPIO_NUM_0 ,GPIO_NUM_45 , GPIO_NUM_1 ,GPIO_NUM_2 },
{ board_t::board_M5AtomS3RCam , GPIO_NUM_0 ,GPIO_NUM_45 , GPIO_NUM_1 ,GPIO_NUM_2 },
{ board_t::board_M5PaperS3 , GPIO_NUM_42,GPIO_NUM_41 , GPIO_NUM_1 ,GPIO_NUM_2 },
{ board_t::board_M5PaperDIY , GPIO_NUM_42,GPIO_NUM_41 , GPIO_NUM_42,GPIO_NUM_41 },
{ board_t::board_M5StampPLC , GPIO_NUM_15,GPIO_NUM_13 , GPIO_NUM_1 ,GPIO_NUM_2 },
{ board_t::board_M5PowerHub , GPIO_NUM_48,GPIO_NUM_45 , GPIO_NUM_16,GPIO_NUM_15 },
{ board_t::board_M5StampS3Bat , GPIO_NUM_47,GPIO_NUM_48 , 255 ,255 },
Expand Down Expand Up @@ -190,6 +191,7 @@ static constexpr const uint8_t _pin_table_sd[][7] = {
{ board_t::board_M5Cardputer , GPIO_NUM_40, GPIO_NUM_14, GPIO_NUM_39, 255 , 255 , GPIO_NUM_12 },
{ board_t::board_M5CardputerADV,GPIO_NUM_40, GPIO_NUM_14, GPIO_NUM_39, 255 , 255 , GPIO_NUM_12 },
{ board_t::board_M5PaperS3 , GPIO_NUM_39, GPIO_NUM_38, GPIO_NUM_40, 255 , 255 , GPIO_NUM_47 },
{ board_t::board_M5PaperDIY , GPIO_NUM_39, GPIO_NUM_38, GPIO_NUM_40, 255 , 255 , GPIO_NUM_47 },
{ board_t::board_M5StampPLC , GPIO_NUM_7, GPIO_NUM_8, GPIO_NUM_9, 255 , 255 , GPIO_NUM_10 },
{ board_t::board_M5PaperColor , GPIO_NUM_15, GPIO_NUM_13, GPIO_NUM_14, 255 , 255 , GPIO_NUM_47 },
{ board_t::board_M5PaperMono , GPIO_NUM_13, GPIO_NUM_12, GPIO_NUM_11, GPIO_NUM_10, GPIO_NUM_9, GPIO_NUM_8 },
Expand Down Expand Up @@ -2060,6 +2062,11 @@ static constexpr const uint8_t _pin_table_mbus[][31] = {
this->In_I2C.bitOff(m5pm1_i2c_addr, 0x11, 1 << 3, 100000); // Set gpio3 output low
break;

case board_t::board_M5PaperDIY:
m5gfx::pinMode(GPIO_NUM_4, m5gfx::pin_mode_t::input);
m5gfx::pinMode(GPIO_NUM_3, m5gfx::pin_mode_t::input);
break;

case board_t::board_M5PaperColor:
m5gfx::pinMode(GPIO_NUM_1, m5gfx::pin_mode_t::input);
m5gfx::pinMode(GPIO_NUM_9, m5gfx::pin_mode_t::input);
Expand Down Expand Up @@ -3042,6 +3049,12 @@ static constexpr const uint8_t _pin_table_mbus[][31] = {
| ((!m5gfx::gpio_in(GPIO_NUM_12)) & 1) << 1;
break;

case board_t::board_M5PaperDIY:
use_rawstate_bits = 0b00011;
btn_rawstate_bits = ((!m5gfx::gpio_in(GPIO_NUM_4)) & 1)
| ((!m5gfx::gpio_in(GPIO_NUM_3)) & 1) << 1;
break;

case board_t::board_M5PaperColor:
use_rawstate_bits = 0b00111;
btn_rawstate_bits = ((!m5gfx::gpio_in(GPIO_NUM_10)) & 1)
Expand Down
18 changes: 18 additions & 0 deletions src/utility/Power_Class.cpp
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Expand Up @@ -267,6 +267,17 @@ namespace m5
_adc_ratio = 2.0f;
_wakeupPin = GPIO_NUM_48; // touch panel INT
break;

case board_t::board_M5PaperDIY:
_pmic = pmic_t::pmic_m5pm1;
M5pm1.setGPIOFunction(M5PM1_Class::gpio2, M5PM1_Class::gpio);
M5pm1.setGPIOMode(M5PM1_Class::gpio2, M5PM1_Class::output);
M5pm1.setGPIODrive(M5PM1_Class::gpio2, M5PM1_Class::push_pull);
M5pm1.setGPIOOutput(M5PM1_Class::gpio2, true); // EPD_PWR
M5pm1.setGPIOFunction(M5PM1_Class::gpio3, M5PM1_Class::gpio);
M5pm1.setGPIOMode(M5PM1_Class::gpio3, M5PM1_Class::input);
M5pm1.setGPIOPull(M5PM1_Class::gpio3, M5PM1_Class::pull_up); // CHG_STAT, active low
break;

case board_t::board_M5PaperColor:
_rtcIntPin = GPIO_NUM_7;
Expand Down Expand Up @@ -1951,6 +1962,13 @@ namespace m5
return M5pm1.getGPIOInput(M5PM1_Class::gpio0) ? is_charging_t::is_discharging : is_charging_t::is_charging;
}
break;

case board_t::board_M5PaperDIY:
{
// PM1_G3 is CHG_STAT, low=charging / high=not charging
return M5pm1.getGPIOInput(M5PM1_Class::gpio3) ? is_charging_t::is_discharging : is_charging_t::is_charging;
}
break;

case board_t::board_M5StopWatch: // M5PM1_G2
case board_t::board_M5StampS3Bat: // M5PM1_G2
Expand Down
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