Interface Selection: to choose SPI or IIC interface through R3, R4, R5 For IIC communication, it is necessary to move the resistor on R4 to R3, and R5 is soldered with 0 ohm resistor.
SPI communication or I2C communication can be switched by configuring three resistors R3 R4 R5
I found this to be the cheapest bltouch in India not sure if I can get it cheaper that this anywhere. And is in working condition and works as it should , but the delivery charges are little on higher side.
The product shown in the picture is made by Hongli, China. But in the received item there is no marking about Manufacturing details. Only BIS sticker.
However, the battery working fine after initial charging.
This is the good service for the think robotic, but the price is very high and shipping charges mor than high for the low weight shipment. But Material quality is good.
