why you want to this.
if you are an electronics enthusiast or a hobbyist you might familiar with lots of microcontroller boards like
- Arduino Uno
- Arduino nano
- Arduino pro mini
- esp 8266 nodemcu
unlike other boards, nodeMCU has only one analog pin so if you want to be read more than one anlog value using nodemcu ? is it possible to read multiple analog values using only one pin.? yes
how is that possible?
we are done this by turning on and off sensors like multiplexing .first we turn on one sensor and we read the analog data from that sensor and at the next step we turn on the next sensor and turnoff the first sensor and read data from the second sensor that it
things needed for this project
- nodemcu
- 2*variable resistors
- 2*diodes
- breadboard
- some wires
connections
positives of variable resistors to d1 and d2
grounds to grounds
connect analog pins to diodes positive side
connect diodes negative end to A0 of nodemcu
I used diodes to overcome overlapping data
that's all about connections
programming
thanks
Nice
ReplyDeleteHi, Looking for some help with a small industrial project. Would like to reach you on email / whatsapp to discuss this further. Iam from Kochi. email - joeking22@hotmail.com
ReplyDeleteCan you send values of variable resisters and diodes?
ReplyDeletetype of diode?
ReplyDelete