Forum >Running SEN0193 capacitive soil sensor on 3 volts?
Running SEN0193 capacitive soil sensor on 3 volts?
dkalischer 2016-07-01 15:53:30 2194 Views3 Replies The SEN0193 sensors I'm using have been working well. I am using them with a 5 volt Pro Mini.
I would like to use the 3.3 volt version of the Pro Mini so I can run it on 3.0 CR3032 batteries. I realize the SEN0193 has a built-in voltage regulation which requires a higher input voltage. According to the manufacturer's datasheet, the TLC555CDR timer can operate from 2 volts to 15 volts.
Would it be possible to bypass the sensor's voltage regulator and power the 555 timer directly from the 3.0 Pro Mini power supply?
I would like to use the 3.3 volt version of the Pro Mini so I can run it on 3.0 CR3032 batteries. I realize the SEN0193 has a built-in voltage regulation which requires a higher input voltage. According to the manufacturer's datasheet, the TLC555CDR timer can operate from 2 volts to 15 volts.
Would it be possible to bypass the sensor's voltage regulator and power the 555 timer directly from the 3.0 Pro Mini power supply?
2016-07-05 02:02:08 Hi dkalischer,
Sorry for my wrong understanding.
In theory, the SEN0193 sensor can be operated on 3.0 volts by bypassing the sensor's voltage regulator and powering the 555 timer in the sensor directly, but can't guarantee the timer in the best concussion point. Wendy.Hu
Sorry for my wrong understanding.
In theory, the SEN0193 sensor can be operated on 3.0 volts by bypassing the sensor's voltage regulator and powering the 555 timer in the sensor directly, but can't guarantee the timer in the best concussion point.
Wendy.Hu 2016-07-02 03:14:43 My question was not about operating the 3.3 volt pro mini on three volts. My question is: Can the SEN0193 sensor be operated on 3.0 volts by bypassing the sensor's voltage regulator and powering the 555 timer in the sensor directly? dkalischer
dkalischer 2016-07-02 01:25:28 Hi
Normally the actual voltage is greater than the standard voltage, so you can power the 3.3 Pro Mini directly via the 3.0 CR3032 batteries, and the output voltage of the 3.3 Pro Mini is still 3.3V ( only if DC input 3.3V up to 8V) , the sensor will work well. But the battery power is reducing all the time, you need to notice the power of the battery, low battery for a long time work easy to lost the bootloader. Wendy.Hu
Normally the actual voltage is greater than the standard voltage, so you can power the 3.3 Pro Mini directly via the 3.0 CR3032 batteries, and the output voltage of the 3.3 Pro Mini is still 3.3V ( only if DC input 3.3V up to 8V) , the sensor will work well. But the battery power is reducing all the time, you need to notice the power of the battery, low battery for a long time work easy to lost the bootloader.
Wendy.Hu 