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Okay so let me get this straight first. You are talking to the PIC through UART and will give it a MAC address of a phone. At that time you will compare the MAC addresses in memory and determine if it is a stored phone or not. Does that sound right? How do you store the initial MAC...
Well with power at that range you are going to want safety redundancy. I would first implement a contactor/relay that activates the system and can be switched off for deactivation. Also, fusing and fail safes in a lot of locations. The controller depends on how you want the operation. If you...
Ah you're right, sorry not the greatest eyes. So PMOS makes a lot more sense, are you sure that it is hooked up correctly still to get it to turn on? I am not sure on Falstad if it matter or not.
So if I am reading the circuit right, you are trying to use a NMOS transistor to turn on an inductive load. You are using a npn transistor to drive the MOSFET gate on and off. So what happens is when the switch is off the npn is off and the NMOS is power on. When the ignition switch is on...
I believe this is more based on statistics. Each hop you make introduces the possibility of error in the bits because of noise and the translation and transmission of the data at each spot. Each transmitter is packaging your data and send it with a DAC to the antenna to transmit. The receiver...
Depending on how your system looks, you could do this with your microcontroller. Just have a reference temperature sensor and map an offset on the pressure based on the temperature. This would be easier then trying to do it all with hardware.
Hi there,
Usually these designs are co developed and there isn't really a right order to go about it. You design to meet your need, depending on where it will be worn you can get an idea on the enclosure needed. Depending on the environment you will need IP ratings and connectors to make sure...
Two conductive pads with wires that compresses on the battery for good contact. You could pretty much use two pieces of aluminum foil and one of the black paper clamps
I am guessing one the registers haven't been setup for the correct SPI communication.
From the datasheet, "When using the SSP module in SPI slave mode and SS enabled, the A/D converter must be set to one of the followed modes, where PCFG3:PCFG0 = 0100,0101,1110,1111." It appears you are in...
Here is what I see:
1.) There is a 8Mhz crystal that is oscillating into Q1, effectively turning it off and on
2.) C2 is used to filter the DC from the oscillator
3.) DC biased voltage divider mixed with the ASK reasonator that feeds into Q2
4.) Resonating signal is filtered by C4
5.) analong...
Well most likely it would be from the drivers. Since it is a buck configuration, there is some kind of switching that is taking place to absorb the energy in the circuit to reduce the voltage. Depending on the switching frequency, this could be in the high audible range and produce such a...
You have to check the datasheet to set what kind of data memory is available for storing the values. You would start with the start address of the memory and write each byte and increment the write counter. Then when you want to retrieve the data you would read all the values from the start...
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