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SPI usage questions
Hi all,   I am using 2 atmeaga 324pa chips connected together via SPI. Micro A is the master and micro B is the slave.  Previously i have only used Micro to an SPI temp...
Monday, 3 December 2018 - 10:27
Comparator Follower Circuit
Hi All,   I have a requirement but i don't know how to implement it in circuit form.   I require a circuit to switch on at a certain voltage and then follow that rising...
Wednesday, 13 June 2018 - 14:51
Voltage Level Shifting
Hi All,   I require a bit of analogue electronics level shifting guidance.   I am interfacing to an old circuit with a pot that is powered with -5V and +5V. ...
Wednesday, 6 June 2018 - 08:40
Bus Readers
Hi, I am looking to buy a new bus reader for decoding I2C, SPI, CAN and I/O signals. I have seen two products: 1) Saleae Pro 8 2) Digital Discovery 2 Does anybody have any...
Tuesday, 5 June 2018 - 14:49
Audio Jack Detection
Hi All,   I require a bit of guru input.  I have 2 x 3.5mm stereo female jacks, the 1st is a speaker output, and the 2nd is a headphone out.  These jacks are...
Wednesday, 14 March 2018 - 11:31
Reading Isolated Signal
Hi,   I am using a wide input TEN 5-2411WI dc/dc converter chip with a Vin Gnd and a Vout Gnd.    On the input side of the dc/dc Vin is a 12V battery and on...
Tuesday, 23 January 2018 - 19:36
DAC Selection Help
Hi all,   I am trying to select an external DAC, but when searching through the parametric search on RS I get a bit lost.  My requirements are below:   * 8bit...
Monday, 27 November 2017 - 16:42
Latching Relay vs Flip Flop
Hi all,  I need some analog design advice. I am designing a circuit that every time a switch is pressed the output latches to the opposite state.  In regard to...
Monday, 13 November 2017 - 09:28
CTC Opeartion Issues
Hi.   OK, I have an ATmega324PA, and when I program this chip with and ICE3 the CTC on Timer1 works, and flashes the LED.  If I power off, and restart the micro, the CTC...
Sunday, 11 September 2016 - 15:08
3.3V to 1.8V problems
Hi,   I have just switched from powering my micro with 3.3v to 1.8v and now the micro and i think usart does not work.  I cannot test the output of the usart because the...
Wednesday, 7 September 2016 - 13:29
Low Power I2C problems
Hi,   I have a fully working project that I am just tweaking for low power operation, and I have noticed the I2C is consuming 5.2mA in its standby state.   If I stop all...
Wednesday, 24 August 2016 - 13:30
AS 6.2 unable to program working old code
Hi,   I have some fully functional old code, that I have programmed into chip many times, but now I cannot tweak/ change this code and program into a chip.     I...
Wednesday, 20 July 2016 - 09:05

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