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

4 ½ digit meter with LCD display

Status
Not open for further replies.
V

Vermes

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


The meter is based on a chip TC7129 and dedicated LCD. Scheme was taken from the layout sheet.



The board was designed in SprintLayout5. It was made for work in two different versions.



One – powered from 9V, the second version is powered from 5V (7660 system was used to supply the system from 5V voltage, also using the application from the TC7129 layout sheet).



LCD display was specialized for that system. There are two types of such a display: VIM-503 and JH63p. First of them is a product of Varitronix and the second is a Chinese product.



Link to original thread (useful attachment) – Miernik 4 1/2 cyfry z wyświetlaczem LCD
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top