Uploaded May 2026 | Updated September 2026, 1 week ago

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This video breaks down the schematic circuit behind how the Joulescope achieves precise voltage and current measurements.

Special thanks to Matt Liberty, creator of Joulescope, and Josh Brown from Texas Instruments.

Links:
- Matt's LinkedIn: linkedin.com/in/mattliberty
- Matt's website: joulescope.com
- Joulescope 3D view: download.joulescope.com/products/JS320/JS320-K000/3d_ti/index.html

- TI Test and measurement website: ti.com/applications/industrial/test-measurement/overview.html?HQS=multi-tech-inno-precisiontm_tm-show-pp-inf_robert_joulescope-ww_en_awr
- TI's White Paper on Optimizing Chopper Amplifier Accuracy: ti.com/lit/wp/sboa586a/sboa586a.pdf?HQS=multi-tech-inno-precisiontm_tm-show-whip-inf_robert_joulescope-ww_en_awr
- Bluetooth board: ti.com/product/CC2340R5?HQS=multi-tech-inno-precisiontm_tm-show-pf-inf_robert_joulescope_CC2340R5-ww_en_awr

- Ask your questions about electronics here: fedevel.com/assistant
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Chapters:
00:00 What is this video about
01:52 About Matt and Joulescope
07:08 Schematic - Analogue front end for current measurement
19:48 Schematic - Analogue front end for voltage measurement
21:22 ADC circuit explained
35:38 Testing and validation
50:23 Zero drift op amps
59:14 Layout and placement challenges
1:05:04 Measurement demos
1:11:09 Bluetooth power measurement demo
1:20:26 3D model of the board to show component placement
1:25:26 Joulescope JS320
1:28:27 Matt's website

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