Xianyu price tag e-ink screen driver board

The connection between the ink screen pins and 8266 in the schematic diagram is defined by Wei Xue and can be modified according to your own needs.

• Adopt Type-C interface;
• Both 24p/34p FPC sockets can be used
• Compact size, only as big as a 2.13-inch ink screen;
• The SMD components are packaged in 0805, the serial communication chip is CH340C, the Type-C and FPC pads are extended, and all components are on the front for easy manual welding;
• There are 8 ink screen communication pin headers left on the PCB. You can only solder the ink screen drive circuit part and use it as an independent driver board.

There are two places to choose from in the circuit. One is BS ground (0) for the default 4-wire SPI, and 3V3 (1) for 3-wire SPI. The other is the RESE resistor selected by the toggle switch, 1.54/2.13/2.9 inches. Choose 3R, 2.7/4.2 for the ink screen and 0.47R for the three-color ink screen.

The PCB has been prototyped and verified to be usable. The resistors, capacitors, inductors, and transistors used in the circuit can be obtained from the price tag PCB. 16P Type-C and 0.5mm pitch FPC sockets have dense pins and may be difficult to solder for novices. It is recommended to use a large amount of flux.

Graphic user guide, see what is worth buying link

Source files such as sample programs and image transmission programs can be downloaded by following "Hanshen Technology" and replying to "Ink Screen".