I have been experimenting on solar power for years but it is only recently I decided to go full speed and spent big. I want to share this project so anyone who want to DIY their home solar power project can follow.
Our country has the most expensive electricity rate in the whole south east asia so, investing in solar power is a no brainer. Sure it is a bit expensive but ROI is only around 3-4years if you do it yourself.
In the world of electronics, nothing is created equal. This is also applicable to batteries. A 10AH (ampere-hour) rated battery is not exactly 10AH in actual. This variation on capacity is a big problem when connecting battery in series because the battery with least capacity will be the first to full charge and full discharge. This is where you need a battery balancing circuit.
Solar power is a renewable energy from the sun. But there are times that is raining for several days and during those days, our solar power might not be sufficient for our needs. On this project we will create an automatic solar backup power system to automatically connect to the AC grid when the battery level gets very low.
Here’s a simple 2.1 channel amplifier for you home. it uses TI 20W LM1875 amplifier chip. It uses 4 of it so it can produce a total of 80W. It can output up to 30W with a bit higher THD. Maximum attainable power is 120W total.
My latest project includes an OLED display with 128×64 resolution and 1.3inch size. In search for a library, I found Adafruit oled libray problem. The display does not seem to work with this library. Upon doing some research, I gave up and do this work around instead.
Out of curiosity, I tear-down this iRig audio interface that I used sometimes to record my guitar solo. I didn’t expect the circuit to be complex since this device is cheap (must be fake), only cost around $3.
Nowadays, more and more devices are being connected to internet. It allows us to smart control. On this project I will show how you can control your electric fan using an internet browser on you phone or PC. This is very simple project you can build.
I wanted to build this project a long time ago but I have no time to do it. Today I decide to make a PCB design for it. Unfortunately I do not have any time to make the actual prototype. I will post my design so that anyone can build their own prototype.