红水杯

minittl

Overview

Note: The 16pin type-c interface has certain requirements for welding capabilities. In order to ensure simplicity, this module only leaves the TX and RX two-wire serial ports and power supply. In the picture below, the LED screen printing is upside down. The current PCB picture has been corrected and can be used for direct proofing. Based on the ch340n chip, just install the ch340/ch341 driver, which is used for downloading and programming, etc. Set the 5V and 3V3 jumpers to select the output voltage independently. The two parallel resistors in the lower right corner of the adapter board are silk-screened as jumpers. They have no resistor numbers and are marked 5V and 3V3. Short-circuit either one with solder to output the corresponding voltage (cannot be short-circuited at the same time). Using low voltage difference LDO chip 662k, it can output current within 150ma. ~~~~

Design Files

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Update:2025-05-08 12:52:50

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