Hackaday Prize Entry: A Simple Spectrophotometer

Building on the work of other Citizen Science efforts, [doctek]’s entry for the Hackaday Prize promises to detect pollution, identify chemicals, and perform other analyses with a simple handheld device. It’s a spectrophotometer, and [doctek] is putting some real engineering into this build. A spectrophotometer is one of the simplest devices able to perform spectroscopy,…

via Hackaday Prize Entry: A Simple Spectrophotometer — Hackaday

Hackaday Prize Entry: A Simple Spectrophotometer

HF Differential Probe

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Steven Merrifield created this oscilloscope probe board:

HF Differential Probe

Here is a basic high frequency differential probe ideal for monitoring signals such as RS-485, CAN, MIL-STD-1553 and so on

sjm has shared the board on OSH Park:

HF Differential Probe

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Order from OSH Park

HF Differential Probe

Hackaday SuperConference: Call for Proposals

The 2016 Hackaday SuperConference is coming. Now is the time to submit your proposal for a talk or a workshop at the world’s greatest conference about hardware creation. The SuperCon is an unparalleled opportunity to present on a deeply technical level where you can be certain everyone in the audience is following. All of those…

via Hackaday SuperConference: Call for Proposals — Hackaday

Hackaday SuperConference: Call for Proposals

ESP8285 Development Board

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Kris Winer writes on Maker.io about his new design:

ESP8285 Development Board

This is a small  development board for the ESP8285 (ESP8266 plus 1 Mbyte embedded SPI flash memory) which includes an FTDI FT230X USB-to-serial converter so Arduino programs can be flashed via the USB Micro-B connector. The board has a MAX1555 LiPo battery charger, a 3.3 V MIC5528 LDO supplying 500 mA for plenty of power, has reset and boot buttons for easy programming, has a blue led on GPIO15, green led for power on, red led for charging indication, and yellow and orange leds for RX/TX.

Available for $24.95 on Tindie.

PeskyProducts has shared the board on OSH Park:

ESP8285DevBoard.v01

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Order from OSH Park

ESP8285 Development Board

Modular Drum Machine Creates Random Rhythms — Hackaday

Don’t worry, the rhythms themselves aren’t random! That would hardly make for a useful drum machine. [kbob]’s creation does have the ability to randomly generate functional rhythms, though, and it’s all done on a breadboard. The core of this tiny drum machine is two Teensy dev boards. One is an FM synth tuned to sound like drums,…

via Modular Drum Machine Creates Random Rhythms — Hackaday

Modular Drum Machine Creates Random Rhythms — Hackaday