So here we continue our struggle to solve the hardware problems on the IO board. I took the board with me to my work because of the lack of the expensive equipment at home. On the sides I show you some pictures in sequence on how and with what the removal took place:
Arrival in the lab
Removal pca with hot air
Capillary cleaning
Removal device for SMD and BGA
Cleaning device
The Weller lab
Next episode will be soldering the new PCA9698 and extender on the IO board and testing with the low level assembler routines for the I2C proof of concept.
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