Open source power supply EEZ BB3: voltage support 0-80V, current 0-10A

EEZ Bench Box 3 (BB3) is the first product based on the EEZ DIB concept. The goal is to provide a complete software and hardware framework for manufacturing new modular test and measurement (T&M) equipment that sits between entry-level/hobbyist/DIY and professional solutions, combining their best features. EEZ DIB was inspired by the EEZ H24005 programmable power supply project, which attracted many enthusiasts with its feature set, rich user interface, DIY friendliness and completely open source hardware and software design. Therefore, the first version of EEZ BB3 is equipped with modules that first provide EEZ H24005 functionality and provide increased modularity, capacity and processing power. EEZ BB3 continues the design practice and it can be easily built by DIYers/makers with intermediate soldering, assembly, testing skills, and a basic understanding of software and firmware installation and uploading. While it includes a custom shell, the builder is free to make his/her own or adopt some generic shell of similar dimensions.

main feature:

-Fully open source 

-Modular design

-Full range autoswitch AC input (115 / 230 Vac)

-Minimalist wire harness for simplified assembling and servicing

-Up to 3 peripheral modules

-STM32F7 ARM 32-bit MCU

-4.3” TFT touchscreen display

-Front panel AC power switch

-Front panel bootloader switch for main MCU (firmware upload via USB DFU)

-Incremental encoder and user-defined switch

-USB FS and 10/100 Mbit/s Ethernet connectivity

-Four power relays for various power outputs coupling

-Dedicated full-duplex SPI for each module

-Dedicated bootloader control for each module (firmware upload via UART, SPI or I2C)

-Low noise Ø80 mm cooling fan with speed control

-Remotely controlled by 300+ SCPI commands using the EEZ Studio of similar SCPI controllers, Node-RED, etc.

-MicroPython support

-MQTT support 

-Compact size: 290 (W) x 123 (H) x 240 (D) mm

-Weight (populated with 2 x DCP405 and 1 x DCM220): 4.05 kg