All posts in Gadgets

ESP32 E‑Paper Status Display

ESP32 E‑Paper Status Display

By Jonathan Hassall on

Using an ESP-32 board with an embed­ded E‑Paper dis­play, I cre­at­ed a gad­get that shows sta­tus infor­ma­tion from my web serv­er. E‑Paper, also known as E‑Ink, only needs pow­er when being updat­ed, and uses no pow­er between updates. This means that the gad­get can be pow­ered for weeks from a recharge­able bat­tery. The pur­pose of … Read More

A HTML/JavaScript web interface and a Node/Express server, to control the robot drawing machine over the Internet.

A HTML/JavaScript web interface and a Node/Express server, to control the robot drawing machine over the Internet.

By Jonathan Hassall on

Using Node­JS and Express, I cre­at­ed a web inter­face to remote­ly con­trol the pen draw­ing robot ‘Line-Us.’ Avail­able from Cool Com­po­nents. You can watch a video of it func­tion­ing here: And my pro­jec­t’s source code is avail­able on GitHub:   https://github.com/jonhassall/line-us-web   The robot is avail­able to pur­chase here:   https://www.line-us.com/

Vacation with Autographer

Vacation with Autographer

By Jonathan Hassall on

I was lucky enough to take an Auto­g­ra­ph­er device on vaca­tion to the Unit­ed States this year. This piece of wear­able tech­nol­o­gy is designed to be an ‘auto­mat­ic pho­tog­ra­ph­er,’ doc­u­ment­ing your life with­out inter­rupt­ing it. Auto­g­ra­ph­er is a small wear­able cam­era, that uses five sen­sors to deter­mine opti­mal moments to take pho­tographs. The sen­sors include … Read More

Where did your disk space go? Space Disk Analyser

Where did your disk space go? Space Disk Analyser

By Jonathan Hassall on

If you’ve ever run out of disk space and faced the dif­fi­cult deci­sion of what files to delete or offload to DVDs or an exter­nal hard dri­ve, this pro­gram may help you. Space from AndyH Soft­ware This soft­ware cre­ates a visu­al­i­sa­tion of your hard dri­ve so you can see how much space files and fold­ers … Read More