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Hardware Design

Troubleshooting ADC Readings from Photodiode on Arduino

Hi everyone, I am trying to rebuild a device and have wired everything according to the schematic: You can see that the output pin of the photodiode (pin 5) is […]

How to optimize PCB design for DRV8320 and STM32G431RBT6TR to minimize vias?

Hey everyone, I’m currently working on a PCB design involving the DRV8320 and the STM32G431RBT6TR. As you can see in the attached images, I’m trying to minimize the number of […]

Is it Possible to Use a Power Bank to Charge a 18650 Battery Shield for ESP32?

I have 18650 battery shield with 4x 18650 batteries, that is giving power to my ESP32 and its been working fine. I would need the system to be always working […]

Can anyone tell me how to write documentation for this atmega 32 dev board ?

i have designed this atmega 32 dev board (my first pcb project ) – https://github.com/vedantjadhav304/Atmega32_DEV_BOARD . Can anyone tell me how to write documentation for it ?

Why isn’t my “Hello World” displaying on the LCD screen despite correct connections and power?

Hey Devs , I’ve been trying to make this simple LCD screen circuit that displays “Hello World”. I have made my connections like this And my code is very simple […]

Seeking Feedback on ICSP Configuration for 1-Inch MIDI Project Revision

Hello – I’m working on a revision of my 1-inch-MIDI project https://www.youtube.com/watch?v=5Ws_JfCw5NY that incorporates a potentiometer on the AUX pin, along with an ICSP header arrangement. Thinking I’ll use a […]

Handling Disconnections in KiCad with Rat Bites and Conductive Screws

Hi, I’ve got a KiCad project (revised 1-inch-midi) that I’ve been working on that involves 3 boards separated by rat bites. Ground, VCC and two signal pins are passed between […]

Feedback on MIDI-to-Arduino Adapter Circuit Before Testing?

Working on a MIDI-to-Arduino et al adapter. Not the hardest circuit in the world, and easy enough to breadboard, but might be useful for some. Any comments so far? Guess […]

Incorrect Battery Percentage Reading on MKR 1010 with 3.7V Lithium Battery

Hi I am using the following code to monitor a 3.7V 800MAH lithium battery to power my MKR 1010, and I have all the required library. However, this code always […]

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