The following pinout describes the other key features in the firmware. The Z357PA40 module pad numbers are shown in brackets:
- PB3 (Pad 5): Relay Control
- PB4 (Pad 6): PWM signal (can be converted to 0-10V with an additional circuit)
- PA5 (Pad 9): Network Status Indicator LED **A transistor circuit is required to ensure that this pin is held high at startup. This pin assignment will be changing. See the note on the "PA5 Protection Circuit" page.
- PA6 (Pad 16): Button for factory reset (by driving this pin low for >5 seconds)
The following pins can be used for serial communication with a Host microcontroller:
- PB1 (Pad 17): UART TX
- PB2 (Pad 15): UART RX
For more information about how to integrate the Z357PA40 module in your lighting product design, see the Pinout and Hardware Design Resources pages.