Feed
Pro
Search

Sign in
Darkshift - a dark factory for software Bug0 - The AI-native e2e QA regression testing The foreword by Hashnode - official blog from the Hashnode team Passmark - The open-source AI framework for regression testing Hashnode gql skill - let your AI agent publish to your Hashnode blog Hackathons Changelog Brand @hashnode on X Hashnode on LinkedIn Support - hello+support@hashnode.com Code of Conduct Terms Privacy Sitemap

Search Hashnode

Search posts, tags, users, and pages

@circuitrocks

circuitrocks

@circuitrocks·Manila, Philippines·Joined May 2026

distributor of arduino, adafruit, raspbery pi

About

⚡ Distributor of Open-Source Hardware 📍 Since 2015 | Metro Manila, PH 🔧 Empowering makers, students & innovators

Available for

Nothing here yet.

circuitrocks's blogs

Circuitrocks Blogscircuitrocks.hashnode.dev251 posts

About

⚡ Distributor of Open-Source Hardware 📍 Since 2015 | Metro Manila, PH 🔧 Empowering makers, students & innovators

Available for

Nothing here yet.

circuitrocks's blogs

Circuitrocks Blogscircuitrocks.hashnode.dev251 posts

Articles Comments

Recently published

Ccircuitrocksincircuitrocks.hashnode.dev·3d ago · 3 min read

A Raspberry Pi 5 E Ink Frame That Paints the Birds It Hears

A thin lavalier microphone pokes out from under the eaves of a house in Bergen, Norway, its cable running back through a closed window. Somewhere inside, a picture frame on the wall quietly redraws it

Ccircuitrocksincircuitrocks.hashnode.dev·3d ago · 3 min read

Tiny Contacts Fits Four Relays Onto a 42 x 38 mm ESP32 Board

Your ESP32 home automation controller needs four switched outputs, but the enclosure only has room for one of those blue hobby relay modules. Now what?Sergio Ghirardelli's answer is Tiny Contacts, a f

Ccircuitrocksincircuitrocks.hashnode.dev·3d ago · 3 min read

Build a Pocket Signal Generator With the AVR16EB28 and an OLED

Your parts list here is short: an AVR16EB28 in an SSOP package, a 4.194304 MHz crystal, a small OLED, a keypad, a rotary encoder, a 3.3 V regulator, and a 150 mAh LiPo if you want it running away from

Ccircuitrocksincircuitrocks.hashnode.dev·4d ago · 3 min read

Brass Tubing Is the Frame and the Ground in This ESP32 Handheld

What holds a handheld console together once you skip both the PCB and the printed enclosure?Huy Vector's answer was 2 mm hollow brass tubing. He traced the outline of a 2.4-inch IPS display onto paper

Ccircuitrocksincircuitrocks.hashnode.dev·4d ago · 3 min read

warecache Sensor Bins Count Your Parts Using an STM32H723

Counting 220-ohm resistors by hand is the part of workshop life nobody misses. To automate it you need three things: a bin that weighs its own contents, a controller that can poll dozens of those bins