ESP32 E‑Paper Status Display

ESP32 E‑Paper Status Display

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

Telepresence Internet Controlled 4G/LTE Long Range Robot Car

Telepresence Internet Controlled 4G/LTE Long Range Robot Car

For a long time I have want­ed to build a remote con­trolled robot car capa­ble of being con­trolled via the Inter­net, at long ranges using 4G/LTE cel­lu­lar con­nec­tiv­i­ty. So I did. I used a Rasp­ber­ry Pi 3B+, an Adafruit DC and Step­per Motor Hat, and a Log­itech C930e USB UVC web­cam. The robot is capa­ble … Read More

How to watch the NTU Falcon Cam on PC, Mac, iOS and Android (Updated 2019)

How to watch the NTU Falcon Cam on PC, Mac, iOS and Android (Updated 2019)

I’ve noticed many peo­ple hav­ing prob­lems watch­ing the cam­eras, as the offi­cial web site still uses the now defunct Flash, so I wrote this short guide on a way to play the live stream from the cam­eras: For PC and Mac Down­load and install VLC Play­er Down­load this file (right click and Save As): https://www.jonhassall.com/downloads/ntufalconcams.m3u … 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.

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/

Drone Videos

Drone Videos

Videos from when I had a drone back in 2017: See also the 3D mod­el I cre­at­ed from my drone pho­tographs using pho­togram­me­try and a lot of patience: Aer­i­al 3D Mod­el Cre­at­ed with Drone Through Pho­togram­me­try

Anonymous Traffic Survey Cameras

Anonymous Traffic Survey Cameras

Man­u­al Traf­fic Sur­veys Many peo­ple in the UK may be famil­iar with see­ing groups of peo­ple, or some­times a parked vechi­cle, clear­ly dis­play­ing a sign say­ing ‘Traf­fic Sur­vey.’ These peo­ple are employed to keep a tal­ly of the num­ber of vehi­cles using a road, and the types of vehi­cles. This infor­ma­tion is impor­tant for plan­ning … Read More