Tasmota/tasmota/berry/modules/h-bridge.be

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#
# H_bridge class in Berry to pilot a H-bridge device
#
class H_bridge
var gpio1, gpio2
var max
# init(phy_gpio1, phy_gpio2) - intialize H-bridge with the 2 GPIOs used to control it
def init(gpio1, gpio2)
self.gpio1 = gpio1
self.gpio2 = gpio2
self.max = 1023 # max value of duty
end
# set the value of both PWM values
def set(v1, v2)
if v1 < 0 v1 = 0 end
if v2 < 0 v2 = 0 end
if v1 + v2 > self.max
raise "value_error", "the sum of duties must not exceed 100%"
end
import gpio
gpio.set_pwm(self.gpio1, v1, 0)
gpio.set_pwm(self.gpio2, v2, v1) # dephase by value v1
end
end