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Dear you didn't read the post carefully. I don't have any problem in understanding I2C or communicating with multiple sensors. I'm merely posting a library, for other people to use, that I modified to be able to communicate on multiple simultaneous I2C buses. Of course it is possible as the...
Hi,
There are a lot of I2C libraries for Arduino on internet but there is one problem - none of them supports multiple I2C to communicate to devices simultaneously. I needed a library of I2C that could communicate to multiple sensors (having same address) using a single Arduino and much to my...
You are right. It should reveal helpful details under a microscope and that's what I would've done if I had a microscope handy. One thing is for sure, it is designed for visible light because there are a lot of light tubes near its housing and it is used to differentiate white objects from...
Hi,
I need help in identifying the optical sensor (pic attached). It is a DIP8 package and there is nothing written/embedded on its case. Apparently it is an ambient light sensor array or photo diode array. Hell, it could even be color sensor. I need to know the make and model of this sensor...
Hi
I want to make a programmer for 24Cxx family of EEPROMs. I am using JDM's following circuit:
**broken link removed**
I have 2 questions:
1. Can I use 9-pin serial instead of 25-pin? Will that disturb voltage levels as JDM has stated that it only works with RS-232 levels at < ±7V.
2. Can...
hi,
I am interfacing the keypad on a single port using B0-B7. I am having problem with the key detection.. kindly help.
int keypad(){
int i; int key=0;
output_B(0x01); // Start with column 1
while((input_B() & 0xF0) == 0){ // While no key pressed
output_B(input_B() << 1); // next column...
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