05.28.07
NFX software Idea
A Matlab program to output a test tone and take the soundcard input from the output of the pedal to see what it does to the signal.
Cool bit of analysis software.
Phil
05.21.07
ZBot V0.1a Update
Well Ive now got the IR obsticle detection pairs setup on some stripboard. You can read about what Ive done here:
Phil
05.14.07
Thinking about new EFPD design
Had the presentation today, went well.
More thoughts about the new circuit. Been looking at the low power side this afternoon, found a small CR2032 is a great sized battery at 20mm diameter and it does quite well at 220mAh. [1298246 FEC]
But I dont think that would be very good as a system. As a stand alone product, I should let the company worry about the power source, so I dont have to worry too much about that. More to concentrate on getting the power consumption down and providing a simple triggor solution all on one tiny chip.
So I have found an awesome amplifier to go for the 1 chip EFPD in the form of the LMC6044 with a 2fA bias current and 10uA/amp, only for £1.96 [9494626 FEC]. Just needs a power supply of 5V, and its single supply so I will also have to have a reference there.
Might be a nice idea to fit all this onto a card, or a big DIP package or something.
For a standalone product, the size doesnt matter as much becase a lot of the space will be taken up from batteries. Cost will take presidence here.
Finally also made a new filter (AGAIN) and this time its a 4th order with some cool standard components. It reaches about -65dB at 50Hz which is very good.
Phil
05.13.07
ZBot Mini Report
Ive completed a very quick mini-report for my investigation into the ZBot Prototype V0.1.
[For some reason the pdf crashes my adobe reader when opened in the browser. If it does, just download it. It works fine.]
Phil
05.10.07
First Incarnation of the ZBot
Well Ive spent today getting a simple bot going, and its working ok(ish) on the breadboard, so Im now going to transfer the IR’s to stripboard and then the rest of the bot to something.
ZBot IR
Got the 2 IR working. Bit of a pain in the bum in the fact that its, once again, not mega reliable with triggors at random moments and sensitivity to flourecent lights and sunlight etc.
Now Im going to get the motor working like before with the following circuit:
taken from here.
The code is already written in C18, so It shouldnt take to long to get it working again.
Phil
05.08.07
Project Ideas
- USB ECG
- Miniture Camera with Digital Storage
- Home Lighting Control
- Speech FFT Fountain
- Messing with the TI DSP Kit
- Two speaker Intercom from AmatureLogic.tv