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Hi,
1. The document you shared contains code for PIC microcontroller as (TRISB TRISA all happens in PIC).
2. Bit banging is easy, follow rickeys world website on 8051 , so many examples for the same, use keil uvision or RIDE to compile those.
3.To interface LCD over I2C you either need a...
Hi,
Bitmapper in pune supplies low cost FPGA kit's.
**broken link removed**
You may order from them, or simply contact any local electronics distributor to get in contact with other such supplier around .
Hi,
1. To simulate the circuit I used Multisim student edition, you may grab any other you find suitable, or try online Circuit Simulator Applet
2. Condenser/Electret Mics are configured in similar way, just in case of condenser mic you get extra terminal, dont get much bothered, as your...
Hi,
Child phones ate simplest cellphones you could design , cost however depends on the design complexity.
1. Many companies like SIMCOM offers low cost GSM modem chips that could be used in such cellphones. (SIM900 may be the choice)
2. Complicated part is battery, as Lithium Ion batteries...
Hi,
The circuit given in above post works pretty well, as I tested that while building RF transmitter. The reasons that may causing too much noise in output stage are listed below, kindly check and revert back in case of doubts
1. Electret mic's are easy to identify, look at it's back side...
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