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Main ADC chip: TM7705 (new chip from shenzhen tianwei factory, fully compatible with AD7705 chip). MCU interface: SPI. The internal input of the chip is equipped with a buffer amplifier, which can connect the sensor directly.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.