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Interesting stuff
Just random interesting stuff found along the way...
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Hydrophobic sprays and filters
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PCB & Fabrication
- OSH PCB printing - upload design, anyone can get them printed
- PCB printing & assembly:
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Speakers & Microphones
- Mic that uses 3 µA in sleep mode - could be really useful for audio trigger
- Various speakers
- MEMS microspeakers - potential use for siren feature
- IA-610 DSP MEMS microphone
- Ultrasonic MEMS microphone
- Sound compass
- Audio triangulation (see also, and also)
- MEMS microphones - select MEMS & Sensors on left
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Energy harvesting and storage
- Great info about solar panels, MPP, and batteries
- Decent 3V3 regulator
- Backup power capacitors
- PV harvester on a chip - note: apartheid regime
- Murata super-cap type things
- Power a motor from an LED!
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Communications
- 3G antenna to WiFi
- SDR on Mac
- Physical web address
- Wirepas - decentralised radio connectivity for devices (mesh network)
- Puck.js
- RuvviTag
- Board-mounted tiny antenna for LoRa (via this forum post)
- Loads of SMD antennas
- Near Field Comms
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Distance & Mapping
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Cameras, Imaging, Spectrometer
- Basics of Thermal Imaging
- IMEC hyperspectral imaging
- FIR sensor array
- Hi-res thermal imaging sensors
- Mobile phone based spectrometer - Hue values FTW
- mini spectrometers, etc
- hyperspectral CCD; 165 to 1100 nm
- Hyperspectral MEMS camera - note: apartheid regime
- C12666MA - 340 to 780 nm (~$300)
- C12880MA - 340 to 850 nm (~$300)
- SPM64 - 387 – 903 nm, 776 – 1064 nm
- AS7262 - 430 to 670 nm (<£7)
- AS7263 - 600 to 870 nm (<£7)
- Pyroelectric spectrometer
- Multi-purpose photodiode
- Twilight photometer (instructible)
- MEMS-FPI (Fabry-Perot Interferometer) tunable filter
- Grid-EYE - IR grid camera
- CMUcam - open source programmable cameras
- Infragrams - track plant photosyntesis
- Airborne VSWIR forest spectrometry
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Ionising Radiation Sensors
- 400µA SMD radiation sensor, and older version
- RadBit
- D411S-20-D0010 - Neutron Detector
- UVA UVB light sensor MEMS
- X-ray sensor
- Kearny Fallout Meter
- Berkeley RadWatch
- Radiation dosimeter IC
- Loads of optical sensors
- Ambient light & UV sensor, with interrupts
- god mode UVA/UVB sensor - very accurate, low power, UVA/UVB separately measured
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Atmosphere & Particulate
- How to build test chamber for particle sensors
- Cheap open source PM sensor
- Raindrop measurement techniques
- Python Disdrometer lib
- Rain and Light sensor - can determine amount of rain optically
- Sonic disdrometer
- Measure thickness of cloud via GPS
- Atmospheric moisture content via GPS, another
- Calculate cloud base from dew point
- Calculate dew point
- Cloud photogrammetry, another, forecasting
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Water quality
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Stepper motors, rotary slip rings, etc.
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Chirp sonar gesture sensor (more infos) - like Google Soli, but using ultrasonic
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Water usage sensor - includes mesh networking
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Wallabot - radar that can see through walls
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Plane spotter (more - useful stuff about wifi-based geoloc)
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Using Google Soli for Object Classification - could it be used as a disdrometer?
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Plot.ly - a nice-looking wrapper for D3 charts
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Riffle - open source water sensors
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DustDuino - air particulate
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Air column monitor - wind speed, particulate, VOCs etc
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Non-contact water detector works through walls (XKC-Y25-T12V)
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Omron Mains Switches - manual on/off, but also can be turned off via 5V pulse
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Using an Arduino as a gateway to program an ATTiny - vid, blog
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Decent HCI switches, buttons, joysticks, more, including some insane sliders, vast array of switches