#circuitboard

For my assignment, I need to create a Proteus 8 schematic showing Arduino Uno → PCF8574(I2C backpack) → LM016L LCD connections using I2C. It wasn't too hard to implement basic LCD control (VSS/VDD/VEE/RS/RW/E/D0-D7 → P0-P2,P4-P7). In internet tutorials it typically looks like this: (SCL and...

Hello everyone, I’m facing quite a headache. As you can see in the schematic below, my design includes a PIC24FJ64GA104 controlling the input/output pins. Everything seemed fine until I discovered that there is no signal coming out from pins RA4, RB4, and RA3. I have reviewed the configuration...

I have a wine enthusiast wine cooler with two boards. Both Fx 101 (10.5V). One is bad- Wine enthusiast sent me a replacement board Fx 101 B. Does anyone know if I can use the 101B? The B board has no NTCI connector and no P1 and P2 prongs (the fx101 has two prongs for connections) I'm not an...

Hi everyone! I'm currently working on a digital alarm clock project and have used a website for reference: (https://bestengineeringprojects.com/digital-clock-with-seconds-and-alarm-time-display/) However, I've made some modifications, such as removing the transformer and some diodes. I've added...

I have a Samsung 60" TV Model code UA60J6200AWXXY. The problem was I plugged a multi USB power board into it and as soon as I did the TV went off and I could smell something burnt. Removed the back cover off the TV after unplugging power of course. Have found a circuit that I think is what burnt...

Hi All. I am looking to get my hands on a LifeFitness Treadmill T50 motor controller circuit board: Part Number: A080-92283-B000 ~or~ AK59-00112-0000 Please let me know if you have one — or know where I may find one. I am willing to make a donation ($$). Thank you.

Hello. I'm making a voltimeter-amperemeter using an atMEGA328P, L7805, LM358, LCD 16x2 and some other components. The problem is that even though the LCD turns on, it doesn't show the code or at least the white squares it should, and when I move the potentiometer that goes with it it doesn't...

Hello, so I recently got 2 computing boards from a water treatment unit. I found them for free, and it is from 1997. I am looking for a way to reprogram them, but I have been confused on how I could, and what a few of the components are. If anyone could tell me how I can acess the software, and...

I'm currently designing a Smart Helmet that's planned to have Sensors hooked up and sent through a PCB (with circuit protection and power components). So far how I've gotten is that since this project is homemade for a first time concept prototype coming to life, I have a USB splitter (up to 8...

So I'm not entirely sure how to design this. Could anyone help me with the calculations needed to modulate as well as the circuit design? Please and thanks.

So I got this Finch Robot from my school. I do a lot of Java programming at school for my AP Computer Science class. I want to mess with stuff inside of it but I don't have any kind of knowledge about circuit board. I tried to google it but it seems like no one post stuff about the robot even...