#include QMK_KEYBOARD_H #ifndef ADC_PIN # define ADC_PIN F6 #endif const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = { LAYOUT_ortho_1x1(JS_0) }; void matrix_scan_user(void) { int16_t val = (((uint32_t)timer_read() % 5000 - 2500) * 255) / 5000; joystick_set_axis(1, val); } // Joystick config joystick_config_t joystick_axes[JOYSTICK_AXIS_COUNT] = { [0] = JOYSTICK_AXIS_IN(ADC_PIN, 0, 512, 1023), [1] = JOYSTICK_AXIS_VIRTUAL };