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low-cost RF transeivers?
inAnyone found a good source for low cost RF transceivers? I'm able to find good discrete transmitters and receivers, but as soon as I look for...
Anyone found a good source for low cost RF transceivers? I'm able to find good discrete transmitters and receivers, but as soon as I look for a transceiver the price jumps to $100. Thanks, DougM
SRF08 Ultrasonic Ranger: odd echoes
inHas anyone had good luck with the SRF08? I have mine working, and I am pretty sure it is working properly. I get a decent reading for...
Has anyone had good luck with the SRF08? I have mine working, and I am pretty sure it is working properly. I get a decent reading for the first echo, the the subsequent echoes do not seem to represent real objects. Essentially I get echoes every 25 inches no matter what it is aimed at. I can hold it in the corner of the room aiming into nothing f
The Optimal version of Visual Basic is ????
inI downloaded Microsoft's Beta of its newest Visual Basic, but have begun to have doubts about it being optimal for learning to program the ...
I downloaded Microsoft's Beta of its newest Visual Basic, but have begun to have doubts about it being optimal for learning to program the BX-24 and related family. Is Visual Basic V6.0 the best for this? Or does this really matter? Is there a best book to introduce Visual Basic programing?
BasicX Tutorial/programming guide
inHi all, I have been programming in basic for years and been using Parallax BS2 for a year. I decided to move to the BX-24 as it is...
Hi all, I have been programming in basic for years and been using Parallax BS2 for a year. I decided to move to the BX-24 as it is obviously a better performer for the money. After reading the manuals from Netmedia, I am a bit confused with the programming style, eventhough it is Basic. Besides the book "BasicX and Robotics", does anyone o
MMC card using SPI on BX-24
inHas anyone used a MMC card on a BX-24? I am trying to do it. I have found that I can not use the built-in SPI functions because I need...
Has anyone used a MMC card on a BX-24? I am trying to do it. I have found that I can not use the built-in SPI functions because I need to keep the Card-Select selected over a bunch of transfers, and when the CS is deselected, apparently the transaction in progress is lost. So, I used Tom Handy's bit-banged SPI routines. THANKS TOM! and I
BasicX 24 Factory Program Wont Halt (used with Parallax BOE)
inHello, I just received my brand new BasicX microcontroller today. I've read the entire Hardware Reference manual and followed the steps...
Hello, I just received my brand new BasicX microcontroller today. I've read the entire Hardware Reference manual and followed the steps closely. I am running the BasicX on Parallax BOE (USB Version - w FTDI USB -> Serial Driver). I am able to receive the outputs from the pre-loaded program : Welcome To: Basic Basic Ba
DCF77
inI need to measure incoming pulses of 100 and 200 milliseconds. The PulseIn in not suitable for this, it's rangs is to short. Before I start...
I need to measure incoming pulses of 100 and 200 milliseconds. The PulseIn in not suitable for this, it's rangs is to short. Before I start doing difficult things with the rtc I will ask if someone has another bright idea how to do a simple pulswidth measurement of pulses of this lenght.
MAX 6675
inHello ! Has anyone used the MAX 6675 K-Type thermocouple A/D chip with BX-24 ?? Is this hook-up correct ? no need to invert the CS...
Hello ! Has anyone used the MAX 6675 K-Type thermocouple A/D chip with BX-24 ?? Is this hook-up correct ? no need to invert the CS line ? MAX6675 BX-24 SO ---------- MISO (hole 6) SCK --------- SCK (hole 7) -CS- -------- CS (hole 4) If anyone has knowledge of this SPI bus , please help me with the code ! Sample code would be
+/- 10V to +5V Conversion
inI have been asked to convert some +/- 10V sensor signals to 0 - +5 volt for use with a Basicx 24. Is there a way to do this without using a...
I have been asked to convert some +/- 10V sensor signals to 0 - +5 volt for use with a Basicx 24. Is there a way to do this without using a 3rd party signal conditioning board? I've been shown a simple schematic that uses a resistor network to do this but I don't see how it works. Any help will be greatly appreciated. TIA, Paul Dubinsky
HCMS-2912 alphanumeric LED display font
inI'm using an HP HCMS-2912 alphanumeric LED display in a current project. Internally, it is a 320-bit shift register that drives 40 columns...
I'm using an HP HCMS-2912 alphanumeric LED display in a current project. Internally, it is a 320-bit shift register that drives 40 columns of 8 pixels each. http://cp.literature.agilent. com/litweb/pdf/5989-3181EN.pdf HP offers an ASCII and Katakana font table in an application note; I h
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