Saturday, December 17, 2011

Friday, October 14, 2011

TV/DVD USB EEPROM Programmer by RBT(c)



Introducing the Hi-Speed TV/DVD USB EEPROM Programmer by RBT(c)


EN25T80 SPI EEPROM position



24Cxx I2C EEPROM position.





I2C EEPROM


EN25T80 SPI EEPROM



Download Installer Here:

TV/DVD USB EEPROM Programmer Installer


Kits now READY!!

Tuesday, October 11, 2011

Tuesday, October 4, 2011

Digital Component Tester by RBT(c)

My Digital Component Tester by RBT(c)



Here is my version of Digital Component Tester.


Testing 1N5819 Schottky diode


Testing a 68R resistor.

SS8050 NPN transistor.


22uF Electrolytic capacitor.

Component side of PCB.

Copper Side..


Wednesday, September 14, 2011

USB I2C/SPI EEPROM Programmer

Here is a USB version of I2C/SPI EEPROM Programmer using the famous CH341A Module



Quick view of CH341A USB Module:

Testing I2C Interface

SPI EEPROM Interface.

Closed-up of CH341A USB Module

 Software GUI

24Cxx I2C EEPROM

25Txx SPI EEPROM


Update:







casing decals



Kit will be available soon!!

Monday, August 22, 2011

High Resolution Capacitance Meter

High Resolution Capacitance Meter measures in 0.01pF digits. Total range 0pF to 50uF.

Features:

1. It has very high resolution; from 6 to 7 digits! (Others have 3 or 4 digits)
2. It has a wide range; 0pF to 50uF. (Others do not go over 0.1uF or 1uF)
3. It uses only a single cheap PIC 16F628. (Others use two ICs)
4. It does not need calibration! (Others need calibrating with a special test cap)
5. It can do auto-zeroing, floating zero and negative capacitance (relative to zero).


Prototype:

PCB & LCD

Copper side.

Some Test measurement:


With NO capacitor connected.





With 15pF ceramic cap.
0.1uF Mylar cap.
0.47uF Mylar cap.
10uF Electrolytic cap.
22pF ceramic.