Series Resistor between PSoC and Bluetooth Module | Cypress Semiconductor
Series Resistor between PSoC and Bluetooth Module
My current design uses a PSoC3 and Microchip RN42 Bluetooth module. I haven't been using a series resistor on the UART lines between the two devices, but I see a lot of design that do use series resistors between digital communication lines.
Should I include series resistors between PSoC and BT module? Looks like the RN42 can handle a max of 5mA per pin.