Evhui43K

arduino nano speedometer

Overview

The speedometer made using the Arduino nano development board and some other modules costs about 30 yuan, and the attachment is the program.
Some wiring instructions and changing instructions are in the program file.
Here is the purchase link for the components I use.
Development board: https://item.taobao.com/item.htm?id=681576085765&_u=92nfbctoa618
1602 LCD screen: https://item. taobao.com/item.htm?id=8736932155&_u=92nfbctoac49
Optoelectronic module: https://detail.tmall.com/item.htm?_u=92nfbctob814&id=656478470767
Voltage stabilizing module: https://detail.tmall.com/item .htm?_u=92nfbctoea22&id=40123756555
The switch is KCD11, the power socket is XT60PW-M, and the potentiometer is RV09 with a resistance of 5K.
Row seats are available or not

Design Files

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Update:2025-06-23 04:07:58

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