Hi, I have a primitive routine that you can use it to send a message to com1. rosarite Option Explicit 'program revision 6_2_2007 'Output data to com1...
For some time, I've been intending to assemble a joystick and processor to generate a standard R/C ~1.5mS/50Hz PWM stream. I did not need the RF link of a...
FWIW, the R/C channel pulses produced by the Vex are not standard; they are 25% short. Center stick is, conventionally, 1.5mS and the channel extremes are...
I'm confused (again) and would love some help. I am still trying to get my GPS application to give solid data. I've ripped the app down to the most basic...
Chris, I think that your queue sizes are too small. At 4,800 baud, a character is showing up in the queue roughly every 2.1 millsecs ((1 / 4800 baud) * 10...
... to Com1. ... You need a wait on the UART transmitter ready status somehow, rosarite. Your loop delay period needs to be tweeked - at least in the general...
Hi, I mine computer the delay works okay. But your are right on the delay. I adjusted the delay to worked on mine. That's why I call it primitive. I should...
Here's some code for the Vex. It takes a pulse frame of six channels from either the Vex receiver or the Vex transmitter tether port, both open-collector, via...
Hi, Attached is the upgraded serial output command subroutine. I?revised it to check the? ready bit before sending the output character. Now, It doesn't need...
I have to control a few 24v light bulbs using pins on the BX24. I'm wondering if there is a transistor I can use to power the bulbs directly . The bulbs draw...
Chris, You can use a TPIC6273, 20-pin DIP, 8-channel driver, continuously drives 250mA per output with 1.5Amp pulsed current. You can even buy them from...
Hi, Normally for that type of application?is good to use a switching transistor. I recommend you the 2N2222 that is a switching transistor 800ma collector...
I was on a project where we used TIP 120 I haven't had the chance to really look at how the outputs are set up, on the chip you are using, but we were using a...
Ok, I've got the circuit working with 3 2N2222 transistors driving the 5W incandescent bulbs, one at a time. While it's working perfectly, the transistors are...
... A 2N2222 might be marginal for your load, Chris; you can determine its dissipation to be certain. When a lamp is on, measure the voltage between the...
Hi, Maybe the lamp is pulling more current than 208ma. Normally the lamp resistance is low when is cold and them goes high when is turn on. Are you using...
Folks, here's a cool trick to detect light. Connect an LED - any LED should work, but I chose a phosphor "white" - between an analog input processor pin and...
... I see that this technique has been shown before; it was buried in http://tech.groups.yahoo.com/group/basicx/message/20743 , by bryanwasherein04. Tom...
Have you ever thought of using an opto isolator? I use a LCA710. Rated for 2 amps dc and can handle 24 volts with no problem. I use a 680 ohm resistor on the...
Dear Group: Greetings, I am a dental doctor & i am conducting a research on how much a pressure an artificial tooth can hold. I searched professional dental...
Dear Tom: Thank you for your extreme help. I took a look & its a very sophisticated piece of equipment. It would not be useful in general in my practice. All i...
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