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ThermoNIX - Multi-Channel LM35 Nixie Thermometer
First video on the new and improved bench!
A little project making use of leftover parts, this thermometer was directly inspired by @IMSAIGuy and his video on LM35 temperature sensors here: https://www.youtube.com/watch?v=uO0zslcKyvc
I was increasingly annoyed that I had no way to measure the outside temperature in my lab, so I decided to make a thermometer using a Mera Lumel V628 400mV digital millivoltmeter (with Nixies!), an enclosure from a gutted Elwro 5170 pH meter which became a parts donor (that's a HLY700R for V640!), a 7805 and 7905, and some odds and ends.
0:00 Intro (cat cameo appearance)
1:45 About the Project
3:28 LM35 and Schematic
5:25 Wired...
6:10 The Story So Far
8:10 Get To The Guts!
8:55 Something's Wrong...
11:25 Problem Solvin'!
13:00 Getting To The V628
16:20 A Peek Into the V628
17:40 Recombobulating
19:00 V628 Front End Schematic
20:10 Attachment Claws
20:28 Reversing the Switch (long parts skipped)
22:26 Testing
23:25 Zip Ties This Time
25:00 Body and Lava Lamp Temperature Tests
25:0 Afterword
Fridge test successful. Negative temperatures are indicated as expected.
Support me on my Patreon page at https://www.patreon.com/KeritechElectronics or via PayPal https://paypal.me/keritech
Instagram - https://www.instagram.com/KeriSzafir
Hackaday - https://hackaday.io/keritech
#ElectronicsCreators #Keritech #Electronics
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First video on the new and improved bench!
A little project making use of leftover parts, this thermometer was directly inspired by @IMSAIGuy and his video on LM35 temperature sensors here: https://www.youtube.com/watch?v=uO0zslcKyvc
I was increasingly annoyed that I had no way to measure the outside temperature in my lab, so I decided to make a thermometer using a Mera Lumel V628 400mV digital millivoltmeter (with Nixies!), an enclosure from a gutted Elwro 5170 pH meter which became a parts donor (that's a HLY700R for V640!), a 7805 and 7905, and some odds and ends.
0:00 Intro (cat cameo appearance)
1:45 About the Project
3:28 LM35 and Schematic
5:25 Wired...
6:10 The Story So Far
8:10 Get To The Guts!
8:55 Something's Wrong...
11:25 Problem Solvin'!
13:00 Getting To The V628
16:20 A Peek Into the V628
17:40 Recombobulating
19:00 V628 Front End Schematic
20:10 Attachment Claws
20:28 Reversing the Switch (long parts skipped)
22:26 Testing
23:25 Zip Ties This Time
25:00 Body and Lava Lamp Temperature Tests
25:0 Afterword
Fridge test successful. Negative temperatures are indicated as expected.
Support me on my Patreon page at https://www.patreon.com/KeritechElectronics or via PayPal https://paypal.me/keritech
Instagram - https://www.instagram.com/KeriSzafir
Hackaday - https://hackaday.io/keritech
#ElectronicsCreators #Keritech #Electronics