Microchip

Refer to: https://www.microchip.com/en-us/product/atmega168pa   more info

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Refer to:https://www.microchipdirect.com/product/ATTINY88-AU?srsltid=AfmBOoo7j6oV3kFEyZ-TRn4cQoBhywLcWCpkL8oMCfBA2_7l35S0TQCs more info

Refer to:https://www.microchip.com/en-us/product/mcp4725 more info

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Refer to ：https://www.microchip.com/en-us/product/pm40052 more info