Hi all,
As a homebrewer, I use some devices (iSpindel) to monitor fermentation parameters.
I also have small wifi relays, DIY made by someone else, which transmit measurements to my brewing software, and also display the latest ones.
These relays work very well but have a small drawback: they must be permanently supplied with 5V by a micro usb port.
They are devices that really consume very little and one solution is to use power banks to make them autonomous, however this is not very handy.
I would like to shunt the usb socket to insert two batteries (like 18650), the usb socket would then just be used to recharge them.
I'll also need a small switch to turn the device on/off.
Finally, a small charging indicator to know when the device needs to be recharged would be awesome.
Being very handy, the realization of this project does not scare me, including for the realization of the new boxes (there is not enough space in the current ones). However, I have very little knowledge of electronics, both in theory and hardware.
If some here could advise me on the components to buy and help me develop the assembly diagram I would be very grateful.
I post below various photos to illustrate my project. The red & black wire connects usb to the device.
Thanks in advance
As a homebrewer, I use some devices (iSpindel) to monitor fermentation parameters.
I also have small wifi relays, DIY made by someone else, which transmit measurements to my brewing software, and also display the latest ones.
These relays work very well but have a small drawback: they must be permanently supplied with 5V by a micro usb port.
They are devices that really consume very little and one solution is to use power banks to make them autonomous, however this is not very handy.
I would like to shunt the usb socket to insert two batteries (like 18650), the usb socket would then just be used to recharge them.
I'll also need a small switch to turn the device on/off.
Finally, a small charging indicator to know when the device needs to be recharged would be awesome.
Being very handy, the realization of this project does not scare me, including for the realization of the new boxes (there is not enough space in the current ones). However, I have very little knowledge of electronics, both in theory and hardware.
If some here could advise me on the components to buy and help me develop the assembly diagram I would be very grateful.
I post below various photos to illustrate my project. The red & black wire connects usb to the device.
Thanks in advance
