How to build an infra-red remote control
The infra-red remote control transmits a tone using an infra-red LED. This tone is decoded by the receiver.
Continue reading "How to build an infra-red remote control" »
About Sensors
This page contains an archive of all entries posted to Gadget Freak in the Sensors category. They are listed from oldest to newest.
Radio is the previous category.
Sponsored Gadget Freaks is the next category.
Many more can be found on the main index page or by looking through the archives.
Search
Sign up for the fortnightly Circuits eNewsletter. Get design ideas and circuit schematics straight to your email inbox, no fuss. Just tick the option for Circuits.
Subscribe to this blog's feed
[What is this?]
Subscribe to this blog's feed[What is this?]
Featured Gadget Freak
September's Gadget Freak features Italian designer Flavio Dellepiane and his design for power sockets that can be switched automatically by an embedded Control Socket.
Tag cloud
- Tech air
- Xbox 360
- Ben Heck
- Circuit Search
- projector
- R2D2
- DC-DC converter
- Gamecube
- GPU
- Solio Classic
- Dorling Kindersley
- WEEE Man
- Electronics blogs
- Blog Awards
- MOSFET
- Potato gun
- antique
- start lights
- NiMH
- pulses
- detects
- Mindstorms NXT
- frequency conversion
- Nixie clock
- JELLYFISH
- underwater rocket
- Holoclock
- Cylon
- Charlieplexing
- swarm
- EPFL
- voltage divider
- programmable current source
- composite instrumentation amplifier
- Nautilus
- Munnys
- laser-diode
- RS232
- Solar Server
- ADC
- Kipp & Zonen
- Submit a gadget
- balloons
- Best of the Year
- touch switch
- bit-shifting
- UART
- grasshopper
- Most popular
- robotics
- Bowers and Wilkins
- surveillance camera
- WitnessCam
- Witness Camera
- super flashlight
- Paintball
- Mae Zine
- Maker Faire
- Quartz clock
- eNewsletter
- Freeply EyeMax Radio
- Plant Watering Watcher
- retriggerable monostable multivibrator
- piezoelectric buzzer
- charging
- Best of Make
- Vibrobot
- O'Reilly
- Make
- current sink
- red LED
- white noise
- LEDS
- Freeplay
- Card counter
- business card
- breakout board
- green gadgets
- Gravia
- Trunk Monkey
- BEAM
- solarbotics
- Design Idea
- most popular
- Graflex
- Star Wars
- most read Gadget Freaks
- circuit
- Hi-fi
- RGB
- development kits
- DevMonkey
- pests
- Timer
- F1
- Fire alarm clock
- Blogs
- DMM
- Top 10 Gadget Freaks
- retro
Recent Posts
Categories
- Alarms
- Amplifiers
- Audio amplifiers
- Auto
- Awards
- Capacitance circuits
- Competitions
- Controls
- Delay circuits
- Display/Screen
- FPGA
- Humour
- Japan
- LEDs
- Light flashers/blinkers
- Lighting
- Microcontrollers
- Motor controllers
- Power circuits
- Radio
- Sensors
- Sponsored Gadget Freaks
- Test and measurement
- Timers
- Voltage regulators
- Wireless
About this blog
Gadget Freak features cool, homemade electronic gadgets proudly brought to us--by you!
Complete with build instructions for the design engineer who likes the silly side of inventing things and enjoys building stuff in his and her spare time, these gadgets range from highly silly and impractical to extraordinarily inspirational for your own engineering design work.
Why not submit your own pride and joy for publication in Gadget Freak? Send us your project details here.
Complete with build instructions for the design engineer who likes the silly side of inventing things and enjoys building stuff in his and her spare time, these gadgets range from highly silly and impractical to extraordinarily inspirational for your own engineering design work.
Why not submit your own pride and joy for publication in Gadget Freak? Send us your project details here.
Go to ElectronicsWeekly.com
Powered by
Movable Type Enterprise 4.1-en
Movable Type Enterprise 4.1-en
Sensors Archives
October 16, 2007
June 16, 2008
Solar radiation and a delta-sigma ADC
A device to measure the rays all around us, but it doesn't come under the 'tin-foil helmet' category. File it under delta-sigma ADC - it is a very detailed Solar Server project to measure the solar radiation striking Earth ("insolation"), recording the daily data to a file, which is then emailed. The device used for measuring daily insolation is designed by Wichit Sirichote in Thailand. He introduces the project, thus:
"The total solar radiation is measured by a Kipp & Zonen CM11 pyranometer (pictured). The EMF output of 5.14 uV/W/m2 is fed to the 24-bit resolution Delta-Sigma A/D converter, LTC2400. The microcontroller circuit built with a PIC18F2550 controls the A/D converter and provides one second time base for data sampling period. The insolation is computed by accumulated summation of the converted data in a whole day.
August 21, 2008
Circuit Design Idea - Precision capacitive-sensor interface suits miniature instruments
Here's another newly-uploaded Circuit Design Idea designed to give circuit building inspiration (click on the circuit diagram to expand it).It covers developing a voltage proportional to the value of a capacitive sensor and transmitting these readings via a LVDS interface.
The Design Idea begins:
In some applications of capacitive sensors, the instrument's front end must be small enough to fit into a narrow space. Figure 1 shows a precision capacitive-sensor interface for such use. The square-wave output from a low-voltage 555 timer, IC1, constantly triggers the precision one-shot, IC2, to produce quasistable outputs for time periods T1 and T2, which are proportional to external timing capacitance: T1=KR0(CS+C0), and T2=KR0CS, where K is the multiplier factor.
Recent Comments
Alun Williams on Flavio plugs into smart extension sockets: Allan, I c
Allan Gardner on Flavio plugs into smart extension sockets: There woul
Robert on Parallel powered robotic paintgun produces a Mona Lisa: In fact on
Robert on Parallel powered robotic paintgun produces a Mona Lisa: What does
Trevor Andrews on Flavio plugs into smart extension sockets: Whilst thi
Alun Williams on Neuroti-Kart: Home-made electric go-kart: Excellent.
Mark on Neuroti-Kart: Home-made electric go-kart: Hi. I'm a
Eduardo Tovar Beltran on Jason was a member of the Finding Nemo fan club: good morni
Dave Newton on Arcade machine + beer keg = Gamerator: I just hav