Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Thermometer on 89C2051 + DS18B20

Status
Not open for further replies.
V

Vermes

Advanced Member level 4
Advanced Member level 4
Joined
Aug 2, 2011
Messages
1,163
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,316
Activity points
22,318


This thermometer is based on processor 89C2051 and temperature sensor DS18B20. It is connected the processor via 1-wire bus. Program was written in Bascom 8051 (unfortunately, it takes a lot of microcontroller memory). The processor is clocked by 12MHz quartz. Temperature is displayed with the resolution of 0,1 degree Celsius. The entire device is powered from a universal power supply + 7805 on a board, so you can easily make any changes such as more sensors. Processor 89C4051 can replace 89C4021 because of the larger memory. Thermometer can be used in a room. Display is Winstar WDH0084.



Link to original thread (useful attachment) – Termometr na 89C2051 + DS18B20 by Miguel573
 

Very nice but I think this is better :

SE-TEMP
89C2051 DS18B20 7-Seg LED

Power consuption 27mA @12VDC
Max measurement range -55C do +125C

SE-TEMP schema.gif
www.sample.co.kr/setemp/index.htm

Here is my pcb of this:
PCB 2D Components.jpgPCB 3D Bottom.jpgPCB 3D Components.jpg

Also I made pico compact smd double sided pcb all in one pcb.

Works like charm.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top