The Arduino HP-IB Adapter is a device that implements the HP-IB protocol in software. The device consists of an Arduino Mega board, a prototype Shield and an Ethernet Shield for connection to the LAN. It offers the means to provide support for HP-IB even when dedicated controllers such as the TMS9914A are no longer available.
A Hewlett Packard Infrared Signal Decoder
Several Hewlett Packard pocket calculators are able to send printer output via Infra-Red (IR) signals to a small portable printer. They use an HP-specific transmission protocol which is also called “Red Eye”. This protocol is different from the better known IrDA protocol. This document gives a brief overview of the format and describes hard- and software to build a decoder system for this protocol.
This system allows receiving the “Red Eye” signals with a computer via a serial or an USB interface.
Lixie is an edge-lit acrylic display for any numeric information you can think of! Clocks, temperature displays, hit counters, and more. Always being a fan of the beautiful typography of a Nixie Tube, the Lixie is a modern spin!
The TAPR TICC is a two-channel timestamping counter with better than 60 picosecond resolution and less than 100 picosecond typical jitter. It has an Allan Deviation noise floor below 1x10-10 for a one second measurement.
Battery powered, single channel digital oscilloscope which sends its plots via bluetooth to an iOS (Android will be supported later) device for display.
Analog Bandwidth: 20 MHz
Sample Rate: 100M samples/second
Sample Resolution: 8 bits
Connectivity: Bluetooth 4.0 with 100-ft+ range
Input Range: +/-40V
DC Accuracy: +/- 3%
Offset Range: +/- 40V
Sample Memory Depth: 4k
Input Impedance: 1MΩ || 17pF
Input Coupling: AC/DC
Resolution: 100 mV/division to 10 V/division
Compatibility: IOS (Android and Windows coming soon), open source app and protocol
All day battery life: 8+ hours depending on settings
Dimensions: 20 mm x 30 mm x 118 mm
Weight: 56 g
Raspberry Pi add-on board for Smart Power Management and additional GPIO.
Run Raspberry Pi on Battery Power
Extend RPi battery life from hours -> weeks / months
Deep Sleep, with Wake on Event or Time
On-board Arduino for user programs
Adds Arduino Analogue & PWM IO
Battery-backed Real-Time clock / calendar
Avoid SD Card corruption with proper shutdown
Works with all 40-pin Raspberry Pi Models (Zero, A+, B+/B2 and B3)