Is the Tx output 5V?
Is the Rx input 3.3-5V compatible?
dicka
USA
Asked
— Edited
UBTECH Alpha Servos UBT-12HC
— Control UBTECH Alpha UBT-12HC smart servos via ARC using EZ-B v4/IoTiny UART, assign virtual ports, set baud, custom bits and position mapping.
Try it →
You could measure the TX signal. If its logic high is 5V, the RX will most likely be 5V tolerant.
With no Connection the measured level at the Bluetooth module Tx and Rx pins is 5V, so I assume that means that EZ-B is OK with 5V pulses. However, I am interested in replacing the Bluetooth module with an RF module that outputs 3.3V on its Tx pin. EZ-B will probably be OK with that, but I'm not sure. The Rx input of the RF module is OK with 3-5V.
It'll take up to 5v. Any voltage greater than 0 is considered ON. So even 1 volt is enough
Thanks DJ, that's good info. Thanks to both of you for the quick response.