Reading Update
I have all of my books and I'm having a much better time now. I'm trying to read a book a week, about 120 pages a day. It's been working, more or less.
So far, I've come to understand more about the rfPIC12F675, as I examine the pin diagram in more depth, the block diagram and the pinout table. There are two main power sources for the chip. One is the general power supply. VDD is pin 1 and VSS is pin 20. Then there is a separate power source needed for the radio transmitter. The "VDDRF" as they call it, is assigned to pin 9 and there are two ground pins for the radio, "VSSRF" at pin 10 and pin 12.
I will need to add an external crystal into the design to work as the timing clock - I had assumed this was included in the chip, but I was wrong. Well, there is mention of using a resistor/ capacitor circuit, but apparently it's not very accurate and the oscillator is cheap anyway.
Before I start programming anything, I need to put in a voltage regulator for the main power, I also need to add a 10 Kohm resistor connecting the Master Clear Reset (pin 4) to ground. Apparently, I need to solder a serial connector for debugging statements to be sent, but I don't know if I believe this. I will wait until I get the software installed and investigate more. But, the port, pin and baud rate must be defined in any code with debugging statements.
On a different note: I want the magnetic plates to not be showing/ accessible to the dancer. I know that the electricity running from the chip through the lead to the first magnet to the second magnet and back to the chip will not be enough to hurt anyone, but I still want it to be covered. So, I will put it underneath the regular metal pieces on the shoe and cover the whole thing in a thin insulator. I still haven't picked out the exact reed switch I want, thinking I might want to try and build it myself. I should come to a decision soon so I can add this to my order. I planning on ordering in about two weeks when I have some more money and have given myself a little more time to say: "Wait a second! That's not right! I need this model instead."
All in all, pleased with the progress so far. I almost wonder if the magnetic switch system will be finished early. I don't want to jinx myself, but maybe I will have to time to replace the reed switch with accelerometers after all.
So far, I've come to understand more about the rfPIC12F675, as I examine the pin diagram in more depth, the block diagram and the pinout table. There are two main power sources for the chip. One is the general power supply. VDD is pin 1 and VSS is pin 20. Then there is a separate power source needed for the radio transmitter. The "VDDRF" as they call it, is assigned to pin 9 and there are two ground pins for the radio, "VSSRF" at pin 10 and pin 12.
I will need to add an external crystal into the design to work as the timing clock - I had assumed this was included in the chip, but I was wrong. Well, there is mention of using a resistor/ capacitor circuit, but apparently it's not very accurate and the oscillator is cheap anyway.
Before I start programming anything, I need to put in a voltage regulator for the main power, I also need to add a 10 Kohm resistor connecting the Master Clear Reset (pin 4) to ground. Apparently, I need to solder a serial connector for debugging statements to be sent, but I don't know if I believe this. I will wait until I get the software installed and investigate more. But, the port, pin and baud rate must be defined in any code with debugging statements.
On a different note: I want the magnetic plates to not be showing/ accessible to the dancer. I know that the electricity running from the chip through the lead to the first magnet to the second magnet and back to the chip will not be enough to hurt anyone, but I still want it to be covered. So, I will put it underneath the regular metal pieces on the shoe and cover the whole thing in a thin insulator. I still haven't picked out the exact reed switch I want, thinking I might want to try and build it myself. I should come to a decision soon so I can add this to my order. I planning on ordering in about two weeks when I have some more money and have given myself a little more time to say: "Wait a second! That's not right! I need this model instead."
All in all, pleased with the progress so far. I almost wonder if the magnetic switch system will be finished early. I don't want to jinx myself, but maybe I will have to time to replace the reed switch with accelerometers after all.
posted by Denali at 6:35 PM
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