Shared Projects by buserror-old

This board takes power from a USB port (typically a wall charger). It uses a 904nm IR thru hole LED as a photosensor, and when it detects ‘night’ it starts doing a very very gentle mix of the two LED on the board. I use these with a ping-pong ball as a diffuser, and a blue + red LED. I’ve been using these with DIY PCB for years and I’m always asked to make some by visitors. The board is ‘reversible’ in the USB port, however, you might want to add a piece of tape on the side that is not in use, it depends on how the USB wall charger was assembled. Assembled version pics: https://plus.google.com/111387094029238541867/posts/btWXpUo2yrh

This is mostly a “ethernet connected device” to allow network access to up to 4 relays, or LED strips for example.

It is a carrier board for one of the really cheap “Arduino Pro Mini” you can buy for 1.99 GBP on ebay.

It has a slot for a ENC28J60 ethernet module (ebay again, about 3 GBP) that installs itself underneath.

It has 2 (optionals) TC4427 dual FET drivers, to drive relays directly, or a FET to control large LED arrays. The 4 FET are routed to the edge connector.

It also has a Maxim DS2483 i2c to Onewire master, to hook up one or mode temperature sensors and the like. Also routed to the edge connector.

The serial port is also routed to the edge connector, as well as the ISP of the processor.

Furthermore, you can select the voltage of the arduino with a jumper, so you can run it all at 3.3, or at 5V.

More information available on this post and even more on that post

I’ll update this once I upload the firmware + BOM etc to github.