Recent content by No0bert

2 12v 24AH SLA connected in series with 4 12v 55AH batteries. The output voltage is 72, since it is in series, but since they are different batteries, what is the current?

I have just resumed my project and still dont have a valid chassis idea, here are some pictures, please dont hesitate with any and all suggestions. But some might not be considered because of the fact that I dont have a welder, CNC, lots of scrap metal. I have not drilled on the caster wheel...

Ok so we are given the capacitance and voltage of the entire circuit composed of only capacitors, the different capacitors are in series and parallel. So my question is, what are the rules/steps for solving for the capacitance, charge, and voltage across each capacitor in the circuit?

Is there a circuit where no programming is required? I searched Google, yielding inconclusive results.

So I found this really simple Biofeedback schematic with source code, and I was wondering, does anyone know of any similar source code that does the same thing, or is able to convert it from PIC use to Picaxe28x1. If this is a dumb question then please tell me, as I am not a programmer...

I searched every datasheet of wheelchair motors with my part number, yielding inconclusive results, so I ask, how much current does your typical wheelchair motor draw?

With sealed lead acid, do you refer to the AH of the batteries to find suitable wire thicknesses, so no extra resistance is obtained. For example, say a 1.5v (AA) battery has .5 Amps, you need a wire that retains .5 Amps, but is it any different with batteries whose SI is Amp-Hours? Just for...

I recently bought two used Jazzy Wheelchair motors, and I am not willing to spend 200-ish dollars on a suitable motor controller. What I wonder is how to use a scooter motor controller? Has anyone interfaced them before? What was your outcome? Thanks! EDIT: I want speed control so PWM is a must...

Ok, so heres the seudoschematic: Windows Controller -> Laptop -> C Code -> Bluetooth Dongle -> BlueSMIRF -> MCU -> Actuators Does anyone know of any C code that basically transmits packets of information (TX) from bluetooth to a bluetooth modem with UART (RX). I know I will have to configure...

I have started looking at colleges, and I have googled my ass off searching for samples in engineering-major college essays, my college of choice asks the question: ...write about why you are interested in your choice of major or you may write on any subject you choose... And I wish to apply...

I have been using EagleCAD to make schematics and then switching over to board view, and they have worked fine, but yesterday I underwent a very big schematic, and I found it annoying connecting all of the GNDs, my question is, is there a plug-in or another Board making software that connects...

I am using the Picaxe 28x1 chip and I noticed, there is no UART for my bluetooth, why dont the picaxe chips have UART? All of the competitors do, and the only thing stopping me from switching over is the programming languange.... I dont want to have to learn C but I must eventually, so I have...

Does anyone have a tutorial on how to wire any Popular Controller (Wii, Xbox, Playstation, Playstation 2, etc.) with the Picaxe 28x1 Microcontroller Board (AXE020) To control it to do basic things with the onboard L293D such as forward, backwards, and turning and different buttons for different...

When I follow a tutorial on how to make a schematic in EagleCAD, I am supposed to use the "Add" button, when I do, no parts come up, am I supposed to download a "library" of parts? Note: I am not making a 3D PCB, simply a schematic, I will later turn into a .brd file

I like ordering my parts from Mouser.com in bulk, and recently, I underwent a new project. In this new project I require a simple CdS Photoresistor (LDR) ...and Mouser only has "phototransistors" are they the same (pictures/specs dont match up), and if not, can anyone provide a Mouser link to...