See the figure for my circuit diagram. I use LF412 as a voltage follower and amplify the signal, and then convert the amplified analog signal into a digital signal 1 or 0 through LM339. However, I use...
[i=s]This post was last edited by Tas_Lan on 2022-10-22 14:56[/i]fpm383C fingerprint module
Module Introduction
The HLK-FPM383C series fingerprint module has complete fingerprint processing capabiliti...
When using sim800c to send text messages, I only know how to send a series of data, but I can't do it if I want to split it into lines. For example: Device number: 00 Pressure abnormality! How can I a...
The stuff has basically arrived. I started assembling it these two days. Since I have been busy recently, I expect it to be done in about 3 days:) [size=14px]1. Acrylic board: After the board is assem...
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