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My project is Interfacing one 4x4 keypad with two 89 c55wd ics. That means the keypad connected to one 89c55wd should display the same data on both LCDs. C code is same for two controllers.Please suggest me.Already hardwired same keypad to two microcontrollers but not working.LCDs are not...
My project is to use SNMP PROTOCOL and ETHERNET communication using 8051 or any other uc .my doubt is if this snmp and Ethernet communication can be done using AT89c55wd ic.If no then which microcontroller can be used? are c codes available for snmp? whether there is any module to do this work...
I am using DSN-2520A-219+ to generate 2520MHz single frequency.Reference input is 20MHz(+5.9dBm).In Minicircuits datasheet register map is given for 2520MHz but there is no output.Please any body help me out
can you help me with another code and schematic using max485 which level converters ttl-max485 and max485-ttl
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if any variation in inputs of dip switches will be there any variation on output of max485(AandB outputs)?
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how to check whether transmitter...
Thanks for your response.What you said is correct and i am not able to understand "There is no need to wire VCC from left side to right side.But it is wrong also".What does this mean? Whether i have change my hardware connections to achieve
Tx = DI = 1 --> RO = Rx = 1
Tx = DI = 0 --> RO = Rx = 0.
Sorry for disturbing you.If i ONswitch in transmitter------A and B voltages must be +5v and 0v at the output of transmitter.
These A and B of transmitter are fed to A and B of reciever--------------output of should be +5v.
If i OFF...
thanks for your suggestions.My project is involved with 2 max485 ics and 2 8051 ics and dipswitches at transmitter side.MY aim is when I ON a switch connected at P1 of transmitter side,the reciever should recieve and display it on P2(0x01)
when I OFF a switch connected at P1 of...
I am new to MAX485 interfacing.My project is TTL-max485 level at transmiter side and max485-TTL at reciver side.please let me know how the connections are made to achieve level conversion and what will be the output voltages at transmitter side and reciever side.Is one max ic is ok for...
i am using adf4153 in that for single frequency 1800MHz my code is locking.whereas if i change the frequency to 1810MHz i have program R0 register and restore the new values to it.here how i have to store the new R0 value to the old one
i am defining a array a[n]=123456;the same is displayed on lcd also. the problem here is if i give n=0; a[n]++;the position of the a[0] is incrementing and displaying but now i want to move to next digit to increment i.e.a[1],a[2],like that give code for this how to increment one by one and...
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