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Very low stacking height PCB connector
Accepted answer
9 votes

The SlimStack and/or PMC connectors might be useful alternatives, it depends a bit on the pin pitch that you can use: http://www.molex.com/molex/products/group?key=board_to_board_connectors&...

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Replacement for Queues in RTOS
7 votes

One easy way is to put a pointer to the data on the queue and consume the data using the pointer. Note that you're trading safety for performance this way as you have to make sure that: the buffer ...

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Do all PHY Ethernet chips have a hard-coded MAC address?
6 votes

Many PHYs do not have MAC addresses, in particular the cheapest ones as you need to pay for a block of MAC addresses and they leave that up to consumer. Example: the popular (at least among hobbyists)...

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Logic Analyser for Mac environment
5 votes

I've used Saleae's Logic with success and it works on Linux, OSX and Windows (I've only used the first two). It's cheap, very, very small and has a few useful analyzers built it.

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4 Digit LED Display usage
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4 votes

From some Googling this seems like a commonly produced module based around the CA-5461BS chip. It might have many manufacturers like the HD44780-based LCD module. To summarise it's behaviour, it ...

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Using a heat gun to transfer toner onto DIY PCB?
3 votes

From my experience with iron-based toner transfer you really need to apply lots of pressure to get the toner to transfer properly. I tried lots of different techniques (>10 tries) before finding the ...

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Working with PIC to send data to server
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3 votes

It seems that the device already has the Microchip TCP/IP stack compiled up and running so it shouldn't be too hard to implement a HTTP client that POSTs the data to your web server. I think there is ...

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Digital Dimmer With Microcontroller
2 votes

This application note (AVR182: Zero Cross Detector) from Atmel describes how you can do zero-crossing detection with two 1MΩ resistors. This involved connecting the mains signal directly to the ...

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Small Wireless Gyroscope & Accelerometer
2 votes

Basing your design on existing Arduino designs might be a good idea if you're (rather) new to electronics as you can easily prototype your entire design with know working hardware and then just ...

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Can I send data to my computer from the serial port on an Arduino/ATTiny?
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2 votes

Neither the ATTiny45 (parameters overview) nor the ATTiny85 (parameters overview) has a UART, which makes it a bit painful to connect them directly to a computer. If they had a UART a common ...

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What are those plugs called, and who is the manufacturer?
2 votes

Those look very much like the connectors that Märklin uses for their model trains, the good old analog version.

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Is there a "Design Patterns" for synthesizable RTL?
2 votes

I found A structured VHDL design method (pdf) interesting and useful, but it only covers a single design pattern.

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How to use AD 676 Analogue to Digital IC
2 votes

This data sheet contains one example circuit. You will need to specify a bit more on your requirements to get a better answer. I think that particular chip is a bit overkill if you just want a simple ...

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xilinx jtag cable
Accepted answer
2 votes

The CTRL pin enables the DIN, TMS_IN and CLK signals so that they "reach" TDI, TMS and CCLK on the JTAG and FPGA headers. The PROG pin is similar, it will pull down the line that goes to TDO and D/P. ...

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Bit banging a UART
2 votes

Another possibly applicable method is to use an external circuit to select one of the two input sources and feed the signal to the UART. For this to be appropriate you need to know when you're ...

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Connecting a high-speed comparator into a computer
1 votes

If you only need a single board I think the current solution is probably the cheapest given the cost of any form of electronics development. However, if you need more boards I think the FPGA way is ...

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Chassis / case for electronics projects
1 votes

This is another option: http://buckeyeshapeform.thomasnet.com/item/bmx-bmu-rackmount-desktop-enclosures/bmu-series-cases/bmu-10-100-13. They look very 1980s, but they.

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Ethernet two-port hub (re-routing)
0 votes

The obvious answer is the 3-port passive ethernet hub as seen previously in the question "Building a passive ethernet hub with anti-parallel diodes". Giving you a more specific answer is hard as you ...

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RAM device that plugs into microSD slot?
0 votes

An option is to just solder off the connector and add wires instead. You can wire it to another board directly or go through another board that has both the connector and connectors you can connect ...

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