9
Antenna Designingview story

http://forum.allaboutcircuits.com – I am new to the field of radio transmission. I working on a project that involves transmission of 434 Mhz signal through a transmitter receiver pair. I want a directed antenna so that they can communicate only through reflection from other surface. I need it to be low powered as i require a battery and the range be 150 m (80 m approx if it receives from a reflection.) . (Embedded)

9
12V bus transceiverview story

http://forum.allaboutcircuits.com – Hi, I need to design a circuit or find an IC that can switch several bus lines up to 12v. They also need to go to high impedance so that they do not interfere with the other devices on the bus. I have used a TI device before, which works great, but only goes up to 5v max. Ideally, it also needs to be ESD protected. Anyone got any ideas? Much appreciated (Embedded)

9
Need help with a projectview story

http://forum.allaboutcircuits.com – I am new to this forum and also new to the field of electronics. I am a computer programmer by profession and hobby. I have a few ideas where I would like to get a microchip programmed and fabricated. I can explain this in detail if any one is interested in helping me create one. Can this be done on a small scale without having to pay big money.$$$$ Thank you for reading my post (Embedded)

9
3-dimensional printer project, pls. Help!view story

http://forum.allaboutcircuits.com – Good day! A problem shared is a problem solved. Fellows, please I need an urgent assistance in overcoming a serious challenge I'm facing interfacing my Microcontroller with a stepper motor controller PC through the parallel port. (Embedded)

9
What's the word for this (English or not)?view story

http://forum.allaboutcircuits.com – What's the word for something that defies explanation - Something that has to be experienced to be understood? Like color; There's no good way to explain colors to someone that's been blind since birth. Color is a ________. Or, another example from the movie Blast From the Past, is baseball. (Embedded)

9
Electrocutionview story

http://forum.allaboutcircuits.com – I don't know how many times I have corrected people over the years, about the correct term for electrocution. I've heard them say, "Yesterday, John was electrocuted".:eek: I'd say, "No, John was shocked, (or, received a shock); yesterday". Ever heard people say that?;) (Embedded)

9
How to decode RCMM philips protocolview story

http://forum.allaboutcircuits.com – hello everyone, I am trying to decode RCMM(philips protocol) using VISHAY TSOP31536 IR Receiver with STM32F207 microcontroller kit. There is sufficient data for RC5 protocol but not even a single site is explaining about RCMM. Even the details of RCMM specified(frame/message details) in documents is quite different from what I extracted from the CRO in lab. (Embedded)

9
Is there a systematic way to get solution in PLC programming?view story

http://forum.allaboutcircuits.com – I am struggling with ladder diagram for traffic light. Is there a systematic way to get the solution? I don't know if Karnaugh map works here. I have searched a lot but there is not a complete guide on this. (Embedded)

9
program size error in keil softwareview story

http://forum.allaboutcircuits.com – hi there i am using a micro-controller AT89s8253 which has the RAM memory of 256byte but in my program whenever my program RAM increase to 130 byte it showing a message of program memory 135 and target not created so before 129 byte kiel software create an hex file but not onward so plz help me out as soon as possible.:( thanks in advance. (Embedded)

9
Solder mask top/bottom for padview story

http://forum.allaboutcircuits.com – What should be recommended value of solder mask for pads. Like if I have 100mil pitch throgh hole connector or 0805 capacitor for which I have to make solder mask. It largely depend on manufacturing process but I want to know recommended values. (Embedded)

9
mAh - battery capacity questionview story

http://forum.allaboutcircuits.com – If I connect 2 - 1.5V AA batteries in parallel, I know the voltage is cumulative. I now have a 3V power source, but what happens to the capacity of the two batteries together? The technical sheet gives me a capacity of about 2800 mAh at a discharge of 25mA for 1 of the batteries alone. In parallel, will I still have the same capacity of 2800 mAh even though I have 2 batteries? (Embedded)

9
Stereo Receiver Protection Relay Closes Too Fast on Sansui G-7000 Receiverview story

http://forum.allaboutcircuits.com – I picked up a Sansui G-7000 receiver last month. All original for restoration I noticed the first time I powered it up that one replay clicks instantaneously upon hitting the power switch and then it takes several seconds for the second replay to click in. (The schematic shows two relays - and inrush relay and a speaker protection relay). (Embedded)