Hi,
I'm looking to create a portable project running on a LiPo battery. 3.7v
I bought a dog lcd with backlight and the docs mention adding resistors and capacitators when running on 3V.
If I hook it up to a 3.7 volt battery, will 5V output from the Teensy still be giving 5V? I'm asking since I believe that powering the LCD from 5V is the easiest option. Looking at this post: https://www.pjrc.com/teensy/td_libs_DogLcd.html I would just need 1 resistor and I could run rest of my circuit on 3V. If I power it on 3V I will need capacitors etc I least that's what I gather from
https://www.lcd-module.com/fileadmin/eng/pdf/doma/dog-me.pdf I have the SPI model
I guess I'm just asking here if these assumptions correct:
- DOG LCD is easiest to setup with 5V power, just one resistor needed
- A Lipo 3.7V powered teensy 4.0 can power an LCD at 5V
- The SPI can at the same timer be operated at 3V
Jeroen
I'm looking to create a portable project running on a LiPo battery. 3.7v
I bought a dog lcd with backlight and the docs mention adding resistors and capacitators when running on 3V.
If I hook it up to a 3.7 volt battery, will 5V output from the Teensy still be giving 5V? I'm asking since I believe that powering the LCD from 5V is the easiest option. Looking at this post: https://www.pjrc.com/teensy/td_libs_DogLcd.html I would just need 1 resistor and I could run rest of my circuit on 3V. If I power it on 3V I will need capacitors etc I least that's what I gather from
https://www.lcd-module.com/fileadmin/eng/pdf/doma/dog-me.pdf I have the SPI model
I guess I'm just asking here if these assumptions correct:
- DOG LCD is easiest to setup with 5V power, just one resistor needed
- A Lipo 3.7V powered teensy 4.0 can power an LCD at 5V
- The SPI can at the same timer be operated at 3V
Jeroen
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