Joined February 2024
- Tweets 51
- Following 82
- Followers 74
- Likes 225
17 Photos and videos
17h
Heres it plugged into my mini hotplate:
The plate draws about 20V, where it linearly draws power until it plateaus at about 42W (2.1A). You can also see the graph drop immediately to around 0.1W when the plate turns off. Fun stuff!
17h
USB-C Power Meter (status: complete!) 🎉
This fun little side project!
Features: curr./volt./pwr readout screen, pwr/curr. vs time graph, and an easter egg…
Here it is reading the power/current draw when charging my phone.
Full project repo: github.com/JunKimmmy/USBPowe…
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17h
USB-C Power Meter (status: complete!) 🎉
This fun little side project!
Features: curr./volt./pwr readout screen, pwr/curr. vs time graph, and an easter egg…
Here it is reading the power/current draw when charging my phone.
Full project repo: github.com/JunKimmmy/USBPowe…
May 18
Quick lil side project time...
A friend had one of those USB-C power meter devices lying around and wanted to make one of my own rather than buying one OTS!
Features:
INA238 Power Monitor STM32G030 SSD1315 Display
(0.3V-48V, 5A)
Schematic ready to go, layout next 👀
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21h
Fits like a glove. final firmware tweaks before wrapping up this project…
Jun 15
USB-C Power Meter Enclosure Design!
So awesome that onshape is free! Printing overnight on my Bambu, lets see how it turns out...
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Jun 15
USB-C Power Meter Enclosure Design!
So awesome that onshape is free! Printing overnight on my Bambu, lets see how it turns out...
May 23
Layout Complete! Yusss! 🪇
Got this 4 layer board to be smol as 33.5x25mm (in comparison to the display which is 21.5x16.64).
Next up: bringup and enclosure design...
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Jun 14
yay display works; got a little spaceship game going to test the buttons and a page to show INA readings
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Jun 14
the startup beep is an I2C bus scan (long beeps indicate devices found), funny way to debug I2C peripheral connections lol
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CO2 puck has been assembled!
@HQ_NextPCB sent some preview images for inspection. Looking good 🤞
That lux sensor looks incredible, can't wait to stick it under a microscope.
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Jun 9
new boards, new me
May 23
Layout Complete! Yusss! 🪇
Got this 4 layer board to be smol as 33.5x25mm (in comparison to the display which is 21.5x16.64).
Next up: bringup and enclosure design...
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Jun 4
Love this one from Digikey (sadly lost this one to the void 😿)
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May 23
Layout Complete! Yusss! 🪇
Got this 4 layer board to be smol as 33.5x25mm (in comparison to the display which is 21.5x16.64).
Next up: bringup and enclosure design...
May 18
Quick lil side project time...
A friend had one of those USB-C power meter devices lying around and wanted to make one of my own rather than buying one OTS!
Features:
INA238 Power Monitor STM32G030 SSD1315 Display
(0.3V-48V, 5A)
Schematic ready to go, layout next 👀
3
13
3,862
May 18
Quick lil side project time...
A friend had one of those USB-C power meter devices lying around and wanted to make one of my own rather than buying one OTS!
Features:
INA238 Power Monitor STM32G030 SSD1315 Display
(0.3V-48V, 5A)
Schematic ready to go, layout next 👀
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2,999