Post Created date
Capacitive loading problem on SPI?
Hi, SPI is intended to be used for on-board comms between devices. Try using rs232 or rs485. Dave.
Monday, 13 September 2004 - 04:39
problem with opamp
Or you could just not use a voltage follower Op amp at all...A simple voltage divider and a cap should do the trick. Dave.
Sunday, 29 August 2004 - 22:40
uart to 2 uarts help
Hi, As Bob said, you can connect one UART TX line to 2 UART RX. Connecting 2 UART TXs to a UART RX can be done if you put them through an AND gate. You also have to make sure they...
Monday, 9 August 2004 - 00:09
GSM protocol
Hi, You might want to check out this link Dave
Friday, 6 August 2004 - 03:48
mega128 eeprom is temerature sensitive!
Bob, Try sending the byte out the serial port as well. That will tell you whether the problem is with the AVR or the LCD. Dave.
Wednesday, 4 August 2004 - 23:18
Problems measuring a rectangular signal
Hi, What happens if u reduce the R and C values? Dave.
Friday, 30 July 2004 - 04:17
Delay Function Help
Hi, If an interrupt occurs in the middle of your 'countdown' delay function, then your results will be way out. If that could be a problem use a timer for your delay. Dave.
Thursday, 29 July 2004 - 02:07
Wireless radio Push-to-Talk button
hey Freaks Magnetic field strength decays with 1/r3, so your hall effect sensor is going to have to deal with a massive voltage range, if you want it to work over 0-100cm for...
Wednesday, 21 July 2004 - 22:13
Wireless Synchronisation
ka7ehk wrote:Dave - Could I ask what sort of RFID you are working on? My main job is implementing RFID (passive UHF tag reading) into barcode scanners. Jim Yeah, 134.2kHz and...
Tuesday, 20 July 2004 - 23:35
Wireless Synchronisation
Hey Freaks, Thanks for all your replies. My application is in RFID, so nobody's going to die if I miss the odd sync pulse, and no ack's would be required. We've already got wired...
Tuesday, 20 July 2004 - 21:29
Atmel using wireless 802.11 ????
Quote:The WiPort from Lantronix ( Just like the Xport however wireless! AVR UART ---> WiPort ---> Wireless 802.11 I will have the limitations of the serial...
Monday, 5 July 2004 - 21:21
Connecting 5V AVR to 3V logic
Quote: Just today I was looking at what it would take to hook the XPORT (3.3V) to a 5V Mega128. It's possible that it might work, but I wouldn't want to try it. Obviously, there...
Tuesday, 29 June 2004 - 05:18