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Add MOSFET support to Wiegand app.

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This commit is contained in:
Derek Jamison
2023-05-02 13:02:09 -04:00
parent a7c155e88d
commit f1c4a190e6
5 changed files with 61 additions and 8 deletions
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18
gpio/wiegand/scenes/wiegand_instructions.c
View File

@@ -14,6 +14,7 @@ void wiegand_instructions_scene_on_enter(void* context) {
"Connect D0 (Green) to pin A4\n"
"Connect D1 (White) to pin A7\n"
"Connect GND (Black) to GND\n"
"\nOption 1 (no mosfet):\n"
"Add a 10K inline resistor on D0\n"
"between keypad and door.\n"
"Connect Flipper on door\n"
@@ -22,6 +23,21 @@ void wiegand_instructions_scene_on_enter(void* context) {
"door. Connect Flipper on\n"
"door side. Do not inturrupt\n"
"the D0/D1 connections while\n"
"adding the resistors.");
"adding the resistors."
"\n\nOption 2 (mosfet):\n"
"Connect pin A6 to gate of\n"
"mosfet for D1. Connect 5K\n"
"resistor from gate to GND.\n"
"Connect pin A7 to drain of\n"
"mosfet for D1. Connect source\n"
"of mosfet for D1 to GND.\n"
"Connect pin B3 to gate of\n"
"mosfet for D0. Connect 5K\n"
"resistor from gate to GND.\n"
"Connect pin A4 to drain of\n"
"mosfet for D0. Connect\n"
"source of mosfet for D0 to\n"
"GND.\n"
);
view_dispatcher_switch_to_view(app->view_dispatcher, WiegandWidgetView);
}

18
gpio/wiegand/scenes/wiegand_play.c
View File

@@ -24,8 +24,12 @@ void wiegand_play() {
furi_hal_gpio_write(pinD0, true);
furi_hal_gpio_init(pinD0, GpioModeOutputOpenDrain, GpioPullNo, GpioSpeedVeryHigh);
furi_hal_gpio_write(pinD0mosfet, false);
furi_hal_gpio_init(pinD0mosfet, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
furi_hal_gpio_write(pinD1, true);
furi_hal_gpio_init(pinD1, GpioModeOutputOpenDrain, GpioPullNo, GpioSpeedVeryHigh);
furi_hal_gpio_write(pinD1mosfet, false);
furi_hal_gpio_init(pinD1mosfet, GpioModeOutputPushPull, GpioPullNo, GpioSpeedVeryHigh);
single_vibro();
furi_delay_ms(500);
@@ -33,18 +37,24 @@ void wiegand_play() {
int j = 0;
for(int i = 0; i < bit_count; i++) {
if(data[i]) {
furi_hal_gpio_write(pinD1, false);
furi_hal_gpio_write(pinD1mosfet, true); // Activate the mosfet to ground wire
furi_hal_gpio_write(pinD1, false); // Ground the open-drain wire
furi_delay_us(delays[j++]);
furi_hal_gpio_write(pinD1, true);
furi_hal_gpio_write(pinD1, true); // Float the wire
furi_hal_gpio_write(pinD1mosfet, false); // Deactivate the mosfet
furi_delay_us(delays[j++]);
} else {
furi_hal_gpio_write(pinD0, false);
furi_hal_gpio_write(pinD0mosfet, true); // Activate the mosfet to ground wire
furi_hal_gpio_write(pinD0, false); // Ground the open-drain wire
furi_delay_us(delays[j++]);
furi_hal_gpio_write(pinD0, true);
furi_hal_gpio_write(pinD0, true); // Float the wire
furi_hal_gpio_write(pinD0mosfet, false); // Deactivate the mosfet
furi_delay_us(delays[j++]);
}
}
furi_hal_gpio_init_simple(pinD0, GpioModeAnalog);
furi_hal_gpio_init_simple(pinD1, GpioModeAnalog);
furi_hal_gpio_init_simple(pinD0mosfet, GpioModeAnalog);
furi_hal_gpio_init_simple(pinD1mosfet, GpioModeAnalog);
}