1. GND module ground input
2. RF, Ble antenna external pin, select according to actual situation
3. GND module ground input
4. AlO[2] can customize the analog I0 pin;
5. AlO[1] can be customized to simulate 10 pins;
6, AlO[0] can be customized to simulate 10 pins;
7. PIO[0]/UART_TX system debugging serial port, which can be customized as GPIO function;
8. PIO[1]/UART_RX system debugging serial port, which can be customized as GPlO function;
9, WWHITE warm white PWM output, high effective; 1KHz frequency. Can be customized as GPIO function
10. CWHITE cold white PWM output, high effective; 1KHz frequency. Can be customized as GPlO function
11. PIO[5]/SPL_CLK system debugging port, can be customized as GPlO function;
12, PIO[6]/SPL_CS system debugging port, can be customized as GPlO function;
13, PIO[7]/SPL_MOSl system debugging port, can be customized as GPlO function;
14. PIO[8]/SPL_MISO system debugging port, can be customized as GPIO function;
15, PIO[9]/RED red PWM output, 3.8KHz frequency, high effective; can be used as cool white PWM in the two-way lamp firmware. Can be customized as GPlO function
16, PIO[10]/Green Green PWM output, 3.8KHz frequency, high effective; can be used as warm white PWM in the two-way lamp firmware. Can be customized as GPIO function
17, PIO[11]/Blue blue PWM output, highly effective; can be customized as GPIO function
18. SPL_PIO#_SEL system reserves debug pins for SPl mode. Need to pull down by default
19, GND module ground input
20, GND module ground input
21, VCC3.3V DC power input
22, GND module ground input
Note 1: The pin numbers start from the first on the upper left of the module and are arranged in a counterclockwise order.
Note 2: When the module is used as different devices, the functions and pin definitions will be slightly different, please refer to the detailed description of the corresponding firmware