Hi guys,
I have a few I2C LCD screens and I want to display diferent values on both of the LCDs. But my problem is that they have the same address. I have seen that lots of posts say to solder the A0, A1 or A2 on the back of the PCB but I do not have a soldering iron. Do any of you have any solutions?
Thanks
Buy one, you'll need it more often with electronics.
I want to but I am too young
Visit your local radio amateur club or Maker Space to get help to do the solderings.
First time I used a soldering iron I was probably 9 or so. Apparently, that wasn't too young. If you lack the budget, maybe talk to your parents, explain you love electronics and ask them if they want to help you purchase a soldering iron? Maybe convince them to donate a multimeter as well.
Some Arduino boards have two or even three I2C buses.
You could create a few software I2C buses. Here are 30 software I2C buses: manyI2Cbuses.ino - Wokwi ESP32, STM32, Arduino Simulator
However, it is not a good idea to fix a problem by getting into more trouble. Ask around, there is probably someone that has a soldering iron deep down in a box and has not used it for many years.
Likewise but this was about 60 years or so back. Who is telling you are too young?
My dad brought an iron home from work, and also an Avo Minor voltmeter along with a bag of assorted resistors.
I tried to put the colours into a mechanical plastic colour code converter and by the time I had finished I found out to my astonishment I had learnt the resistor colour code system.
These days you can do it on line
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