Item *servo(List *expression)
{
uint8_t x = eval_as_uint8(second(expression));
servo_value = (x>250) ? 250 : x;
return 0;
}
Item *led(List *expression)
{
uint8_t led = eval_as_string(second(expression))[0] == 'R' ? 0 : 1;
Item *value = third(expression);
led_mode(led, value ? LEDMANUAL : LEDSTATE_OFF);
set_out(leds[led], eval_as_uint8(value));
return 0;
}
// 8bit value (poke address value)
Item *poke(List *expression)
{
uint16_t addr = eval_as_uint16(second(expression));
if (third(expression)) {
*((uint8_t *)(addr)) = eval_as_uint8(third(expression));
}
return peek(expression);
}
// (set_pin <pinid> <value>)
Item *lio_setpin(List *expression)
{
const uint8_t pinid = eval_as_uint8(second(expression));
for (List *values = rest(rest(expression)); values; values = rest(values)) {
set_pin_value(pinid, eval_as_uint16(first(values)));
}
return 0;
}
// (pin_mode <pinid> IN|HIGH|OUT|PWM|ADC [value])
Item *lio_pinmode(List *expression)
{
const uint8_t pinid = eval_as_uint8(second(expression));
pin_mode(pinid, eval_as_string(third(expression)));
Item *value = fourth(expression);
if (value) {
set_pin_value(pinid, eval_as_uint16(value));
}
return 0;
}
Item *port(List *expression)
{
uint16_t value = eval_as_uint16(second(expression));
uint8_t i=0;
for (List *remaining = rest(rest(expression)); remaining; remaining = rest(remaining)) {
set_pin_value(eval_as_uint8(first(remaining)), value & (1<<i));
i++;
}
return 0;
}
// value (get_pin <pinid>)
Item *lio_getpin(List *expression)
{
const uint8_t pinid = eval_as_uint8(second(expression));
return uint16_retval(get_pin_value(pinid));
}
// (set_pin <pinid> <value>)
Item *lio_setpin(List *expression)
{
const uint8_t pinid = eval_as_uint8(second(expression));
set_pin_value(pinid, eval_as_uint16(third(expression)));
return 0;
}