Posted by
delabs on
31 March 2009, 5:55 pm
delabs Schematics now on a WordPress, you can comment on the circuits if you need more details. I will try to clarify your doubt or suggest extra reading.
Electronics Circuits is now Hosted on Laughing Squid.
It is a Copper Squid, That makes it more Electrifying !
Posted by
delabs on
25 March 2009, 8:41 am
eLinux wiki – Linux in Embedded Systems
“..preserve and present information about the development and use of Linux in embedded systems.”
Processors
Board and Chip Vendors
Products
BeagleBoard – TI’s ARM based OMAP3 – Beagle Board
ELC will be held April 6th to April 8th in San Francisco, CA, USA. Conference Information (and registration)
Posted by
delabs on
24 March 2009, 9:22 am
Here is a Millivolt Source i built for Calibration in the early days. It uses only CMOS Digital and Mixed Chips from Intersil and CD40xx Series.
Later i tried a unit with 8748 part of the code in my uC section. This is with Ramp-up and Ramp-down using only two buttons. This works even now, The [...]
Posted by
delabs on
23 March 2009, 8:42 am
When you need a proportional control output, either 4-20mA or Time Proportional On-Off, This module is used. It does a slow PWM control, the cycle time for SSR or Thyristor Banks can be closer to Mains Frequency. The 4-20mA can be used to drive motors for turning valves for fuel or fluid heat control.
Schematics of [...]
Posted by
delabs on
22 March 2009, 1:12 pm
This module converts J, K Thermocouple and 4-20 mA Inputs to 0-2V Full Scale. These can be used for any voltage input too. The RTD module can be modified more easily for Voltage inputs. The control output can be On-Off or 4-20 mA/Proportional with another card. The 4-20mA I/O STC1000I is not complete.
Schematics of Modules
J [...]
Posted by
delabs on
21 March 2009, 3:02 pm
AVRTS2080A – Atmel Touch Library ATmega88
“The AVRTS2080A board is an ideal kit for evaluating the Atmel Touch Library implemented on the ATmega88. The kit comes preloaded with software for two buttons, one slider and one rotor.”
ATmega88PA – picoPower technology AVR Microcontroller. 8K Byte self-programming Flash Program Memory, 1K Byte SRAM, 512 Bytes EEPROM, 8 Channel [...]
Posted by
delabs on
20 March 2009, 1:25 pm
STR910 ARM Evaluation Board – ST
A versatile system which can be used both for consumer and industrial product design. It has most of the needed interface for developing the gadget or industrial instrument in the card itself. – delabs
“The evaluation board includes the high performance STR912FAW44ARM966E-S microcontroller featuring Pre-fetch Queue and Branch cache, full speed [...]
