E.box is a completely new device designed to respond to the needs of different groups of people. It is a all-in-one instrument that can be compared to a different range of professional solutions: it can be used as an oscilloscope, multimeter, audio capture device, mining farm controller and so on. You can connect to E.box with a USB cable, WiFi or CAN-bus, controlling it from our open source pc software or a web interface.
What is it?
Have you ever wanted to measure the power consumption of an appliance? Are you a hobbyist tinkering with an electronic device and you want to view the current and voltage waveform of a transformer or a power supply? Are you a crypto miner and you want to monitor the power consumption of your farm? Now you can.
E.box is an all-in-one power analyzer, oscilloscope, multimeter, audio capture device. It works like an extension cord: simply connect E.box between the power source and the appliance. E.box has three communication interfaces: a usb port for a fast data transfer and raw samples streaming, a dual can bus connector to chain multiple devices using ethernet cables, a wifi web-server that allows you to monitor the device from a browser even remotely. Safety has been a design criteria for the board.
- Works with both DC and AC power sources
- 5V USB powered
- Two voltage channels and one current channel
- Built in relay to enable or disable power output
- IEC C13-C14 connectors
- One USB port, two RJ45 connectors, one wifi module
- CAN bus supports up to 64 chained devices
- Four status leds: board ready, output on, output overload, wifi status
- One button for manual relay toggle
- Maximum voltage: 390Vdc or 275Vac
- Maximum current: 15A
- Frequency: 10Hz to 500Hz
- Measure voltage as low as 1mVdc or 0.1Vac
- Measure current as low as 1mAdc or 10mAac
- High voltage isolation: 7mm clearance with air gaps
- Size: 163mm x 100mm x 50mm
What makes it special?
- Measures: voltage, current, frequency, active power, apparent power, reactive power, cos phi, active energy, apparent energy, reactive energy
- Power input and output are isolated from the communication section
- Tolerates large overloads for short periods
- Can stream voltage and current samples via USB like an audio capture device
- Open source software
- Designed and Assembled in Italy
Why did you make it?
We haven’t been able to find any inexpensive power analyzers: if you want to capture the voltage and current waveforms from a power socket you have to use an oscilloscope and a couple of differential probes which are very expensive.
Video demos are available on YouTube: https://www.youtube.com/channel/UCykofA1I7hzNNAwrOy6vzeg
This project will be available very soon on tindie.com