Inside the home made I/O tester. Shows if input gets a positive (green) or negative (red) signal.
Aug 30 2017
Home build input and output tester with 6 channels. Shows if input gets a positive (green) or negative (red) signal.
Home made test power with 5 and 12 volts, ESD ground and laboratory connectors.
Testing a GPIO input on the Raspberry Pi Zero, 10k pull-up to 3.3V
Aug 5 2017
Closeup of Raspberry Pi Zero during GPIO testing. LED is lit, meaning it works!
Aug 3 2017
Testing with Raspberry Pi Zero GPIO output connected to a Darlington driver, success again!
Trying to power the Raspberry Pi Zero with the buck step-down converter, success!
Circuit board fitted in the heartbeat monitor, now testing the module.
Dec 31 2006
Testing the single line LCD display for the heartbeat monitor module.
Dec 30 2006
Testing the mute and light controller I/Os.
Apr 20 2006
Testing the logic of the stack lights controller.
Apr 12 2006
Testing parts of the monitoring module circuits on a breadboard.
Mar 11 2006
Testing inverter circuit for use in fuse box with monitoring.
Mar 18 2006
Testing the WeMos relay circuit in with indented load connected.
Jun 24 2017
Testing relay by sending MQTT commands to the WeMos D1 mini chip.
Initial testing of the light switch module.
Feb 18 2007
Initially testing the software for the 7-segment displays.
May 31 2006
A portable voltage regulator, converts 9 to 20 VDC to 5V.
Feb 3 2007
Test board for ribbon cable to pin header.
May 14 2008
A bit of preliminary testing of the Traffic lights Arduino source code before starting the module build.
Jun 7 2016
Mar 5 2006
Jul 27 2005
Testing all I/Os on the sound alarm module.
Jul 22 2006
Testing mood light controller, with LEDs connected.
Jan 30 2007
Some final testing of the mood light controller circuit board before installing it in the box.
Testing the AVR microcontroller interfacing the keypad, using STK500.
May 19 2008
Testing the LCD with the parallel port before starting the assembly.
Dec 1 2007
Testing a couple of yellow 10mm high intensive LEDs, on a rather messy desk.
Mar 22 2008
Installing the circuit board and doing some final testing on the warning strobe controller.
Fitting stripboard, LCD, wires etc in the case, and doing some testing along the way.
Jul 16 2006
First test of the circuit with LCD for the fan and temperature controller.
Alarm disabling unit #1 complete, running final long term alarm test.
Mar 1 2007
Some final testing of the circuit board before installing it in the box.
Testing the complete circuit and all 33 high intensity LEDs before mounting it all together in the box.
Sep 13 2007
Circuit board with AVR ATTiny2313 ready to be installed in emergency strobe.
Electronics, computers, tech and other geeky stuff by Thomas Jensen aka Hebron
Content licensed under CC BY-SA 4.0.
Made in Norway
Deployed: 1 month ago