I am building a wireless charger based on bq500212A (datasheet here)
I used this evaluation board schematic to drive my own design.
This is supposed to be a raspberry pi 4 shield.
The schematics and board layout can be seen here:
https://easyeda.com/be.mihai22/beacon-raspberry-pi-4b-shield_copy
One modification to the original project is that I am using a microcontroller to process the outputs from the charging chip.
Another aspect that is changed from the original is that I am not aiming for qi standard compliance yet (thus no FOD or thermometer).
The problem that I have now, after soldering the board and making sure the chip is powered up is that I do not receive and outputs to my microcontroller.
This is my board powered up:
The microcontroller works fine and communicates through the FTDI interface.
Please ask about any details and I will edit this post.
I used this evaluation board schematic to drive my own design.
This is supposed to be a raspberry pi 4 shield.
The schematics and board layout can be seen here:
https://easyeda.com/be.mihai22/beacon-raspberry-pi-4b-shield_copy
One modification to the original project is that I am using a microcontroller to process the outputs from the charging chip.
Another aspect that is changed from the original is that I am not aiming for qi standard compliance yet (thus no FOD or thermometer).
The problem that I have now, after soldering the board and making sure the chip is powered up is that I do not receive and outputs to my microcontroller.
This is my board powered up:
The microcontroller works fine and communicates through the FTDI interface.
Please ask about any details and I will edit this post.