This is a raspberrypi pico w hardware in arduino form factor.
Unlike all the other board based on RP2040, which use esp chip as the wireless interface . Picoduino use the CY43439 from infineon. The same chip like Raspberrypi pico w equipped with.
Features:
1. totally compatible with arduino form factor.
2. fw developed for pico w can easily ported to picoduino without any change(especially all the wireless features).
3. using analog swith so that 3 ADC ports can connect to 6 pins from A0 to A5 on picoduino board.
4. use a dedicated voltage reference to improve the accuracy of the ADC.
5. use two DC-DC regulator instead of LDO to improve the efficiency as long as increase the maximum input voltage to 24V.
6. exposed all the GPIO from RP2040 chip.
7. USB type C interface.
8. all the deisgn files are open source and designed in Kicad.
9. The module is in LGA footprint and has a kicad package, which can be easily populated into other space limited PCB.
10. The module is a fix layer design without any trace underneath.
Specifications:
1. Microcontroller: rp2040
2. Wireless : single-band 2.4GHz wirelss interface.( based on Infineon CY43439)
3. Interface: DC Jack and USB Type C
4. Operating Voltage: 3.3v
5. Input Voltage (recommended): 5-24v
6. GPIO: 26 multifunction GPIO. three of them are ADC capable
7. SWD debug interface
8. Clock Speed: 12 MHz
Limitataions
1. I'm not an antenna expert, so the antenna performance can only be regarded as accpetable. Not as good as the official pico w
2. In official pico w design. there are only three ADC pin that's available. So in order to compatible with arduino's pin definition, I use a analog switch to mux those 3 adc to totally 6 pins from A0 to A5.
3. There is no shiled cover for the module in this version yet.
Usage: