The contributors are listed in CONTRIB.TXT. This project uses the TAPR v1.0 license, see LICENSE.TXT.
EEZ Bench Box 3 (BB3) represents a new category of modular Test and Measurement (T&M) equipment. It provides a complete open-source hardware and software framework that bridges the gap between – and combines the best features of – DIY hobbyist tools and professional benchtop equipment. BB3 was inspired by the EEZ H24005 power supply project (OSHWA UID HR000001), which attracted many enthusiasts with its broad feature-set, rich user interface, DIY-friendliness, and fully open-source design. It initially comes with two DC power modules (hence the name of repository modular-psu) and will be expanded with new T&M modules (e.g. multi-channel power source, 2/4-quadrant power module, multi-channel temperature sensor module, data logger, switch matrix, digital I/O expander, function generator, data acquisition module, etc.). BB3 is made up of the following components:
- BP3C EEZ DIB backplane with power output coupling capability of first two modules
- AUX power supply board with AC input protection, soft-start/power-up control, DC fan controller and +5 V / +12 V power outputs
- MCU board based on STM32F769IIT6 32-bit ARM Cortex-M7
- DCP405, 0 - 40 V / 50 mA / 5 A DC power source module
- DCM220, dual sync buck 0 - 20 V / max. 4 A module
- Metal enclosure for housing up to 3 modules with 4.3" TFT LCD. Dimensions: 290 (W) x 123 (H) x 240 (D) mm
- SCPI (Reference Guide in PDF)
- MicroPython (script examples, an example video)
- MQTT (an intro video)
- Node-RED integration (an intro video)
- MIO168 Mixed I/O module
- PREL6 power relays module
- SMX46 programmable switch matrix module
- MUX14D dual 7:1 reed relay 2-wire multiplexer
- EEZ BB3 firmware
- EEZ Studio
- EEZ DIB v1.0 specification
- Discord server
- YouTube channel
- EEVblog forum discussion
- Crowd Supply crowdfunding landing page
- Liberpay donations
Please note that some previous board types and revisions that could be still usable in some cases can be found under previous design folder.