http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. en-gb This work is licensed under a Creative Commons Attribution-Noncommercial 2.5 India License.Rickey's World Disclaimer Ajay Bhargav - contact@nospam.com contact@nospam.com Mon, 01 Dec 2008 23:20:00 -0800 Mon, 01 Dec 2008 23:20:00 -0800 http://backend.userland.com/rss e107 (http://e107.org) 60 Search 8051 Microcontroller Projects AVR PIC Projects Tutorials Ebooks Libraries codes query http://www.8051projects.net/search.php http://www.8051projects.net/forum-t9872.html
i have a project of a temperature sensor network. the concept is a temperature sensor sense the water temperature and transmit the temperature value to display and store at pc. it is a project combine of hardware and software. i plan on using 8051 microcontroller at the hardware part and visual basic 6.0 at the software part. but i am weak at writing the 8051 assembler coding the the visual basic coding. anyone in this forum can help me pls...

thanks]]> Tue, 03 Jun 2008 00:20:11 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html You would need to interface the sensor to an ADC first.Look here for a tut on 8051 interfacing to an adc. http://www.8051projects.net/adc-interfacing/

Next you will have to pass on the logged values to the pc through the serial port.
Here's a tut on serial interfacing. http://www.8051projects.net/serial-communication/

Finally VB program on the pc side for collecting data from the serial port.Look here..
http://www.8051projects.net/plugins/forum/forum_viewtopic.php?5021.0#post_5060
]]> sashijoseph<sashijoseph@nospam.com> Tue, 03 Jun 2008 01:25:51 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html
i am using temperature sensor DS18S20 for this project. But i have problem for the connection. the pin no.2 (DQ) of the DS18S20 need to connect to which pins of the ADC0804? If direct connect DQ to pin 6 and ground pin 7 of ADC0804 will work? But at some website i found that they mentioned about transducer at this part connection. So what is the correct connection?

thanks]]> mic_k86<mic_k86@nospam.com> Wed, 04 Jun 2008 23:46:41 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html abbas1707<abbas@nospam.com> Thu, 05 Jun 2008 03:05:20 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html
thanks]]> mic_k86<mic_k86@nospam.com> Thu, 05 Jun 2008 23:51:37 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html abbas1707<abbas@nospam.com> Fri, 06 Jun 2008 00:35:03 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html mic_k86<mic_k86@nospam.com> Sat, 07 Jun 2008 00:16:34 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html abbas1707<abbas@nospam.com> Sun, 08 Jun 2008 05:31:07 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html mic_k86<mic_k86@nospam.com> Sun, 08 Jun 2008 18:29:11 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html VCC |----/\/\/\/\---->Pin

vdd can be connected to ground if you are using parasitic mode of power but do not forget to add a mosfet for pullup. which is needed most.

Please read datasheet for more information on pullup requirements.]]> Ajay<contact@nospam.com> Sun, 08 Jun 2008 20:36:59 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html mic_k86<mic_k86@nospam.com> Sun, 08 Jun 2008 23:02:33 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html

]]> mic_k86<mic_k86@nospam.com> Thu, 12 Jun 2008 17:05:38 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html
but if you still want to keep it you can

Which software are you using?]]> Ajay<contact@nospam.com> Fri, 13 Jun 2008 00:48:15 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html mic_k86<mic_k86@nospam.com> Mon, 23 Jun 2008 00:36:49 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html Ajay<contact@nospam.com> Mon, 23 Jun 2008 08:37:55 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html mic_k86<mic_k86@nospam.com> Mon, 23 Jun 2008 22:38:44 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html mic_k86<mic_k86@nospam.com> Tue, 24 Jun 2008 06:10:51 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html

]]> mic_k86<mic_k86@nospam.com> Tue, 24 Jun 2008 06:20:54 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html Ajay<contact@nospam.com> Thu, 26 Jun 2008 07:56:06 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html mic_k86<mic_k86@nospam.com> Thu, 26 Jun 2008 17:37:08 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html use simple serial communication to send data to UART.

see tutorial for more help..]]> Ajay<contact@nospam.com> Sat, 28 Jun 2008 06:11:11 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html erm...i mean is the coding (assembly language) for 8051 microcontroller not coding for visual basic.
The asm coding is for the micro to send data to the pc(serial Tx) and the VB program is for the PC to receive the serial data from the micro(serial Rx).
Instead of coding in VB,for testing purposes,you can use the hyperterminal program.If everything goes well then you can create your custom application in VB.]]> sashijoseph<sashijoseph@nospam.com> Sat, 28 Jun 2008 10:03:53 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html mic_k86<mic_k86@nospam.com> Wed, 02 Jul 2008 06:37:39 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html The software uart is for emulating a hardware uart in situations where the hardware uart is unavailable.]]> sashijoseph<sashijoseph@nospam.com> Wed, 02 Jul 2008 21:13:11 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html
If not please do it only then we will be able to find out what the problem is and it will be easy to debug it. I hope you can understand.]]> Ajay<contact@nospam.com> Mon, 07 Jul 2008 07:37:07 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html


sensor.zip
following is the coding i modify from the DS1820 Based Temperature Controller (AT89C2051) at download section. can anyone help me check my coding is correct or not? thanks]]> mic_k86<mic_k86@nospam.com> Mon, 07 Jul 2008 05:41:14 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html Ajay<contact@nospam.com> Tue, 08 Jul 2008 08:10:43 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html
for compiling, i am using asem 5113. is asem 5113 good or got any other better compiler?]]> mic_k86<mic_k86@nospam.com> Mon, 07 Jul 2008 18:58:55 -0700 http://www.8051projects.net/forum-t9872.html http://www.8051projects.net/forum-t9872.html Ajay<contact@nospam.com> Tue, 08 Jul 2008 08:10:47 -0700 http://www.8051projects.net/forum-t9872.html