The Return of the Square Inch Project | Hackaday.io

80 projects

Alternative for the 74LS181 ALU, built in One Square Inch

4 bit TTL ALU

Get rid of that full-size USB connector with this drop-in micro-B replacement.

USB Micro-B to B Adapter Board

This is a 0.8x0.6 inch board with AEM10941 solar harvesting IC charging supercapacitors

Solar harvesting into supercapacitors

jasper-sikken Jasper Sikken

The 2018 Hackaday Prize

This motor driver is able to control a motor using PID by I2C. Taking precise control of a motor have never been so easy.

Smart Motor Driver for Robotics

danny-fr Danny FR

The 2018 Hackaday Prize

A 1 square inch PCB module with 2 tiny solar cells, a highly efficient Li-Ion charger and with 3.3V and 1.8V output

Tiny Solar Energy Module (TSEM)

jasper-sikken Jasper Sikken

A solar powered, battery buffered, USB charger.

miniSolar Charger

The 2018 Hackaday Prize

Gearturbine Rotary Turbo InFlow Similar System of Aeolipile 10-70 AD

State ofthe ArtNovelInFlow GEARTURBINE RotaryTurbo

carlos-barrera Carlos Barrera

The 2016 Hackaday Prize

A great attiny85 ultra small development board! +motor/relay PWM driver !!!!, RGB led, Power LED, User/Reset button, I2C smart header

Picoduino

Super-small, ultra-low-power 96 MHz Cortex M4F co-processor manages sensors and processes data allowing the MCU host attend to other things.

MAX32660 Motion Co-Processor

kris-winer Kris Winer

ESP8266 Dataloger with Temperature, Humidity, Pressure, LDR sensor. Loggs data to Google Sheets using Wifi. DS18B20,DHT22/11,BMP180,I2C bus.

ESP 8266 Square Inch Wifi Datalogger

StanislavJochman

A set-and-forget I2C/digital datalogger. Size: 25.3x 18x 10mm incl. battery. Runtime: > 1year

micropower micrologger [mPmL]

Here’s a simple, tiny electronic dice project using 7 LEDs, an ATtiny25V, a CR1616 coin cell and a few passives.

A Tiny Electronic Dice

zak-kemble Zak Kemble

Smaller version for - The Return of the Square Inch Project

Square Inch - PCB coil joule thief

The 2017 Hackaday Prize

Low-cost, open-source FPGA boards in a tiny form factor with built-in USB, SPI flash, LDO, and MEMS clock.

TinyFPGA B-Series

luke-valenty Luke Valenty

basically my 3v3 regulator + lipo charger power muxer combo from the lameboy

square inch power muxer

The 2018 Hackaday Prize

Tiny development kits with ARM MCUs

DIL Dev Kits

smart miniature (DIP6) 5x7 LED Matrix

reDOT_smart

for Mouser and MacroFAB Blink An LED competition

Solar-powered flashing LED heart pendant

A small sensor stick PCB that can be used for proximity and object detection.

Purza Sensor Stick

anas-raza-khan Anas Raza Khan

Has your bin been blown over in the wind? Did the delivery person leave a parcel in it? These and more questions answered with Bin Monitored

Bin Monitored

stephen-harrison Stephen Harrison

A small board that measures temperature, humidity and pressure every hour for five years.

Low Power Environment Monitor / Logger

alnwlsn alnwlsn

NFC EEPROM with Qwiic Connector

Qwiic NFCPROM

This is a 0.8x0.6 inch board with AEM10941 solar harvesting IC charging a Lithium Ion battery

Solar harvesting into Li-ion battery

jasper-sikken Jasper Sikken

Build a project bit-by-bit, making it easy to design, debug, and program. Electronics is hard unless you Keep It Simple Stupid.

Beetje Bloks