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Hi all fellow electronics engineers.
We are currently working on a two-display ARM processor solution and have finished our PCB but seems to be having some issues with the cabling.
Our current configuration consists of a single SSD1963 LCD display connected by a 1 meter long 40-pin flat ribbon...
Well, yeah exactly.
Either that OR 3 individual transmitters as well will also work - as long as 1 transmitter is ONLY connected/paired with one receiver.
I agree - pardon me with the bands then.
The problem is that I need to get a transmitter that supports these bits to be set by a DIP switch or similar.
Regards Thomas
Hi.
For a new project I need to control some actuators wirelessly by RF remote control.
We need a handy and small two-button remote control which can be connected to an Arduino or other microcontroller.
I have already managed to find such systems and remote controls with two buttons, but the...
I have now done some logging and package sniffing and it seems like the webserver in the other end doesn't respond to the requests, rather than a problem with the RTOS and the lwIP stack.
This is the log:
root@DD-WRT:/tmp/smbshare/tmp/ipkg# tcpdump host 192.168.0.136
tcpdump: verbose output...
Hi.
I have been trying hard to get my FreeRTOS v7.3.0 system working together with lwIP v1.4.1 and I have sucessfully managed to get connection and DHCP.
But when I try to use sockets it only works sometimes.
Most of the times it takes long, trying to connect, and then it times out.
I have...
Hi all.
I have never really been the RTOS guy but I have decided to give it a try now, especially because of the need of a proper IP stack with Socket integration.
So I decided to get the FreeRTOS example with the lwIP stack provided by ST running on my STM32-E407 from Olimex, that contains an...
Hi all.
I have never really been the RTOS guy but I have decided to give it a try now, especially because of the need of a proper IP stack with Socket integration.
So I decided to try and implement the lwIP stack with the CoOS system on my STM32-E407 from Olimex, that contains an STM32F407ZGT6...
Hi edaboard.
I have received the KL25 Freedom board a while ago but did only play with it a little bit within the Codewarrior IDE.
We have now dug it out from the dust as we would like to play a bit with the USB Host functionality of the KL25 processor.
We have read the "USB Mass Storage...
Hi Breg.
No I didn't get it to work and had some higher priority projects that I had to deal with first.
But we will soon be getting an existing OV7670 module WITH on board FIFO, so I will be able to test that with the code and confirm if it works - and thereby conclude that the problem relied...
We need to keep the component cost at a minimum, but it might be cheaper to do this instead of having to find a special, custom designed coil.
But the circuit is also a bit specific as the output voltage has to be controlled with a regulating loop measuring the output current.
If you should...
Yes, that would be good and definitely better.
Unfortunately as the ratio between input and output voltage is that high it is difficult to make any efficient circuit that can generate the required output voltage and output current without using a transformer.
Wow! Yeah, that's a bit expensive - too expensive to be used in the product. Though maybe this could be used for the protoyping, buying a single one only?
So what you would do was to simple connect 5 of the coils in series and then leave a single one, and then use it like that?
Well I am still...
Hi there.
I am currently trying to build a step-up converter also known as a boost converter. I have decided to give the MAX1605 chip a go to start with and later design my own controlling circuitry.
I the found this application note for the design which is just what I want to do - be able to...
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