Close
0%
0%

William Herr

He/Him - Electrical Engineering stuff - Creator of RPDot and UltraTimer

Houston
Following
Send a private message
Similar accounts worth following
5 Followers
29 Following
1 Projects
52 Likes
william-herr
Send a private message

This user joined on 08/24/2023.

9k
42
1
52
World's Smallest RP2040 Development Board
Project Owner Contributor

RPDot

william-herrWilliam Herr

54.2k
5.2k
24
280
A physical switch for my computer to choose between Linux and Windows
Project Owner Contributor

Hardware boot selection switch

stephen-holdawayStephen Holdaway

42.4k
4.4k
31
84
A last gasp Uninterruptible Power Supply for any Raspberry Pi computer.
Project Owner Contributor

Single SuperCapacitor UPS for Raspberry Pi

bud-bennettBud Bennett

39.1k
10.6k
14
25
How to power up and communicate with the cheap RCWL-0516 radar sensor module
Project Owner Contributor

First steps with the RCWL 0516 radar switch

ivorasivoras

29k
3.5k
66
154
Reverse engineering the SMA-Q2 smartwatch to run open source firmware on it
Project Owner Contributor

Color Open Source Smartwatch

emerythemeryth

21.9k
8.4k
16
143
Takes 3D surface scans at close range. It is simple to construct as it uses off the shelf hardware and software.
Project Owner Contributor

3D scanner

jolarJolar

20.8k
3.1k
16
54
This is a fast, heavy-duty Pulse Engine derived from my Commercial grade desulfator. Up to 80% battery yields overnight.
Project Owner Contributor

Battery Desulfator Kit, TESLA 12V compatible

mosaicmercmosaicmerc

16.7k
6.1k
3
66
3D printed fully customizable exoskeleton arm development kit
Project Owner Contributor

3D Printed Exoskeleton Arm

kristjan-berceKristjan Berce

12.8k
11k
8
68
Robotic Exoskeleton for Grip Enhancement and Stroke Rehabilitation
Project Owner Contributor

BEOWULF

chad-paikChad Paik

12.8k
11k
3
25
Emulate Citroen's Lexia / Actia Diagnostics tool to query the CAN bus and log the results to SD card.
Project Owner Contributor

CAN Diagnostics Logger with Arduino CAN shield

haydenhayden

10.3k
3.5k
6
81
Since rpi zero is unobtainum, I got a few.
Project Owner Contributor

raspberry pi zero handheld computer

jaromirsukubajaromir.sukuba

7.6k
4.5k
0
20
Hack a Raspberry Pi case to include IR LEDs and the NoIR Camera module for a home CCTV setup
Project Owner Contributor

Raspberry Pi Night Vision Camera Hack

wesley-archerWesley Archer

7k
6k
7
41
A self-igniting candle implemented using AVR and PIC microcontrollers
Project Owner Contributor

AVR vs PIC: The case of the candle

thierryThierry

6.4k
6.1k
10
39
Fully 3D-printable electric longboard drivetrain with built-in idler system.
Project Owner Contributor

3D-Printed Electric Longboard

yowhwuiyowhwui

5.8k
4.4k
2
26
scalable hardware for neural network system
Project Owner Contributor

NSCE-ngbrain

3drobert3drobert

5.3k
4.9k
0
5
How to make a small FM Radio with oled display which all functions are controlled by a single rotary encoder.
Project Owner Contributor

DIY Arduino Due TEA5767 FM Radio

mircemkmircemk

5.3k
4.5k
23
22
Another Z80 single-board computer.
Project Owner Contributor

Z80 Single-board computer (with AVR controller)

scottScott

4.8k
4.5k
6
20
You may see it's just a stickered chip? NO! This is totally self-contained "mod-chip"
Project Owner Contributor

Minimal and self-contained ATmega1284P "mod chip"

microwavemontmicrowavemont

4.5k
3.5k
0
26
A glove you can wear that houses 3 taser units with brass screw electrodes on the knuckles. Button press activation on the index finger.
Project Owner Contributor

DIY Taser Glove

tommy-callawayTommy Callaway

View all

Share this profile

Share

Bits

Send a private message to William Herr

Become cool instantly

Create your Hackaday.io profile like William Herr and many others

Going up?

About Us Contact Hackaday.io Give Feedback Terms of Use Privacy Policy Hackaday API

© 2026 Hackaday

Report user as inappropriate

You are about to report the user "William Herr", please tell us the reason.