hexesdesu/HPDL1414_Shield (github.com)
The test code for the d1 mini main control is available by yourself. You need to install the ntpclient and timelib libraries, as well as a clock demo.
The green 1414 works normally with my test code, but the black one doesn't work after testing. I don't know why, and I can't find the manual.
But now the price of 1414 has gone up ridiculously.
If you need finished products, you can search hexesdesu
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