USB-C meter C4 C4L support 28V, 36V, 48V of PD3.1

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————– Hardware parameters ————–
C4L:INA226 is a 16-bit ADC chip with a withstand voltage of 36V, which can support PD3.1, 28V and 36V EPR to directly deceive
C4:INA237 is a 16-bit ADC chip, with a withstand voltage of 48V, can support 28V, 36V, 48V of PD3.1, EPR direct deception

————– Connect the meter ————–
Connect the meter and PC with a USB—C cable.
Open PC software, you should be able to see something like the following:

————- Firmware upgrade ————–
Press and hold the C4/C4L OK button, the HID interface is connected to the computer to enter the firmware upgrade mode (the screen displays DFU mode, and the button can be released after the screen is displayed)

More information
https://forum.avhzy.com/forum.php?mod=viewthread&tid=331

Alternative download link
https://drive.google.com/drive/folders/1WL5I9NlFsII3P-vu3GFrUTKbvGQ7OQHQ

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