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Why is the reference voltage not 1.5V? [Copy link]

The reference voltage of ADC0832 is set to 1.5V, VCC=5V, but after voltage division, it is not 1.5V. What should I do?

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[I have now changed to 1k and 429 ohms and it still doesn't work. The pins don't light up and the values are wrong.] "The value is not right either", why don't you tell me what the "value" is. Also, what instrument did you use to measure it? There is no "light" in the first picture.   Details Published on 2024-11-17 15:23
 

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Is the resistor placed in reverse and the resistance value incorrect?

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【Why is the reference voltage not 1.5V】

2 kilo-ohm and 4 kilo-ohm can't divide 1.5V into 5V.

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maychang posted on 2024-11-17 14:01 [Why is the reference voltage not 1.5V?] 2 kilo-ohm and 4 kilo-ohm can't divide 1.5V into 5V.

I changed it to 1k and 429 ohm and it still doesn't work. The pin doesn't light up and the value is wrong.

This post is from 51mcu

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【我现在改成了1k和429欧 还是不行 引脚没有亮灯 值也不对】 “值也不对”,你倒是说说“值”是多少啊。另外,用什么仪表量的? 首帖图中没有看到什么“亮灯”。    Details Published on 2024-11-17 15:23
 
 
 

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Hi Ho Hi Ho posted on 2024-11-17 15:07 I have changed it to 1k and 429 ohms but it still doesn't work. The pins don't light up and the values are not right.

[I have now changed to 1k and 429 ohms and it still doesn't work. The pins don't light up and the values are wrong.]

"The value is not right either", why don't you tell me what the "value" is. Also, what instrument did you use to measure it?

There is no "light" in the first picture.

This post is from 51mcu
 
 
 

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