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Software Defined Radio (SDR) - What Do You Want?
avatar.jpgDescription: In Mai 2007 Elektor published a receiver front end for Software Defined Radio or SDR enthusiasts. This very succesful design was based on a Cypress CY27EE16ZE programmable...
View ArticleKein Interesse?
Attachments: 0 photos | 0 schematics | 0 PCB(s) | 0 software files | 0 other 9140804180
View ArticleSDR
Hi ClemensAttachments: 0 photos | 0 schematics | 0 PCB(s) | 0 software files | 0 other 9140804181 read more
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Cheap, accurate 12V battery checker for solar banks
default_project.jpg Author: | 0 contributions | 0 members | 0 comments | viewsThis little idea came about when I was thinking about an accurate way to constantly measure the voltage of each battery in...
View ArticleProject nearly finished
Some minor software issues to be solved, hardware works OK.Attachments: 0 photos | 1 schematics | 2 PCB(s) | 0 software files | 0 other 9140804183 read more
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Mercury Single-Board Computer
avatar.jpgDescription: This is about two microcontroller boards I received some time ago from Vesta Technology: the Mercury 16 which uses a Microchip PIC16F1947 processor, and the Mercury 18, which...
View ArticleRelay
Hi,Attachments: 0 photos | 0 schematics | 0 PCB(s) | 0 software files | 0 other 9140804185 read more
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Very fast long distance 90° or 180°-IR-"Bumper" for Robotics with diretion
default_project.jpg Author: | 0 contributions | 0 members | 0 comments | viewsThis IR-Reflex "bumper" can trigger on obstracles in an adjustable range of about 10cm to 1.5m on a radius of 180° or 90°,...
View Articlecomments on e-lock installation
Hi I have successfuly installed e-lock hardware on my local wifi system, and every thing seems to work ok. However I configured the temperature scan time to scan every 5s , but I get a reading with the...
View ArticleRequests from Kristian
I would like my send own requests as well if possible. As per recent comments, I agree it would be nice to add an ARM board, perhaps one from TI or the new ST Nucleo boards using the online Mbed IDE. A...
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140257-1 GSM Break-out Board
DSC08110_1.jpgDescription: Introduction:Attachments: 1 photos | 1 schematics | 0 PCB(s) | 0 software files | 2 other 9140804189 read more
View ArticlePCB-design
Attachments: 0 photos | 0 schematics | 3 PCB(s) | 0 software files | 0 other 9140804190
View ArticleHigh speed?
How fast is your system? And does it need special high-speed infrared LEDs for it? I mean, all LEDs are pretty high speed.Regards,ClemensAttachments: 0 photos | 0 schematics | 0 PCB(s) | 0 software...
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LED DC/DC booster build in to an E10-bulb srew-case
default_project.jpgDescription: LED DC/DC booster power consumpotion: > 500mV, max 1V5 40mA The circuit hardware wiring made up via birds nesting technic and fit in to an convential E10-bulb srew...
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THE HEAKER or THE HEADPHONE SPEAKER
photo.JPGDescription: You know - when you are easy listening you have your headphone with a decent noise level - for your ears only, but when you are with friends you need a bit more volume so everyone...
View ArticleMeasurement method, isolation and frequency
Hi, First of all, I believe you should be using a battery as the power source. Firstly because most of time, the measurement is taken in remote location where no power is available. Secondly, for...
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2.4 GHz wireless digital headphone (Texas Purepath)
PS3B.JPGDescription: The project is based on the Texas CC8520 Purepath Technology through the A8520E24A91 ANAREN module which integrates a CC8520 and a RF amplifier CC2591.Attachments: 6 photos | 1...
View ArticleYes high speed IR-diodes needed, this is why - plus some additional information
Hi Clemens,yes, it have to be high speed IR-Diodes (TSHF5410/TSFF5410 or TSHF5210/TSFF5210 or similar) with rise times in the 25..100ns range or little more. Normal speed IR-LEDs with typical 0.5µs or...
View Article1-Transistor LED DC/DC Booster
Attachments: 0 photos | 0 schematics | 0 PCB(s) | 0 software files | 0 other 9140804198 read more
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Animal friendly mousetrap with email notification
mousehelm..jpgDescription: Having a mouse in the house and not being able to catch it, really makes me nervous.., having a kid playing around in the same space as the mouse gives me the creeps.. Most...
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