OctoSonarX2

The OctoSonarX2 is an expanded version of the popular OctoSonar, which allows you to drive 16 inexpensive HC-SR04 ultrasonic sensors from the I2C bus and one additional pin on your Arduino.

Compatible with 5V and 3.3V controllers.

Check it out at my Tindie Store

OctoSonar V2

OctoSonar 2.1

The OctoSonar 2.1 is an improved version of the popular OctoSonar, which allows you to drive 8 inexpensive HC-SR04 ultrasonic sensors from the I2C bus and one additional pin on your Arduino.

Improvements include:

Redesigned echo signal handling, eliminating interference from misbehaving sensors. Address pull-down resistors and larger address jumpers Compatible with […]

Absolute Encoder for the Raspberry Pi

I have published a python module to support my Bourns ACE-128 modules on the Raspberry Pi. The functionality of the Arduino library has been mapped into python. EEPROM state retention uses files, and the encoder map is generated on the fly. Support for the MCP23008 chip is not included.

Get the code on GitHub

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Permalinks on Tindie

Update: Tindie have added the “shortlinks” on the product list page in the store.

Tindie is an online store where electronics hobbyists sell their widgets and doohickeys. I recently started selling a couple of my products on this site and I am very pleased with the service they provide.

When selling your stuff online […]

Digital Knob for Arduino I2C – Absolute Encoder

What is it?

From the datasheet

“Until now, the choice of an absolute encoder meant an expensive, and larger sized product. Through the use of combinatorial mathematics, the absolute code pattern of the Bourns® Absolute Contacting Encoder (ACE™) is placed on a single track for a very economical, energy efficient and compact product. Bourns® […]