Relays again!

Started by c04203420 in BasicX12 years ago 4 replies

I was just wondering if someone would kindly explain a little bit about relays and the bx-24. I have been to many websites selling...

I was just wondering if someone would kindly explain a little bit about relays and the bx-24. I have been to many websites selling relays and the variety/price is overwhelming. I particularly like the searching facilities of farnell and their inventory is huge. What i dont understand is how to source the right one for my project given the huge amount o


BX-24 I/O Pins

Started by Mario in BasicX12 years ago 3 replies

Good Morning, I have an application where I am using the ADC of the BX-24 to read some resistance values of a wheatstone bridge sensor....

Good Morning, I have an application where I am using the ADC of the BX-24 to read some resistance values of a wheatstone bridge sensor. I am using relays, constant current source, and active circuits to read and scale a voltage to correspond to a resistance. The problem that I am running into is that when the relays are not engaged my analog circuit is


Setting Relays on the LCD+...

Started by airmaledfw in BasicX14 years ago

For some reason, whenever I tell the LCD+ to set/reset any of the on- board relays by sending two bytes to the LCD+, 18 Decimal...

For some reason, whenever I tell the LCD+ to set/reset any of the on- board relays by sending two bytes to the LCD+, 18 Decimal followed by 1~255 Decimal, the LCD+ spits an 82 Decimal back at me. Now, in the LCD+ documentation it mentions that the first byte I send th


First time relay

Started by c04203420 in BasicX12 years ago 1 reply

I need some help on relays. For my atmospheric climate control system Im gunna need the microcontroller to switch a multiple larger loads. ...

I need some help on relays. For my atmospheric climate control system Im gunna need the microcontroller to switch a multiple larger loads. Do i need multiple relays or can i buy one which will switch all of my loads? For the fist phase of experimentation Im going to try to switch a light on. The light is powered by two 55w bulbs (110w AC). Could


My Relays have Arrived. Help!

Started by c04203420 in BasicX12 years ago 6 replies

I have just received my solid state relays. http://uk.farnell.com/p roductimages/farnell/standard/42267572.jpg The specs are: ...

I have just received my solid state relays. http://uk.farnell.com/p roductimages/farnell/standard/42267572.jpg The specs are: Description: RELAY, SOLID STATE 4A; Voltage, load RMS min:24V; Voltage, load RMS max:280V; Current, load:4A; Current, surge:85A; Voltage,


Transition to AC

Started by c04203420 in BasicX12 years ago 5 replies

Hopefully this time next week I will have got my hands on some nifty little solid state relays to play with. I have been reading...

Hopefully this time next week I will have got my hands on some nifty little solid state relays to play with. I have been reading through the physical computing book and Im about to make the transition from working with low voltage dc to dangerous ac. Any pointers would be reasuring before i embark upon such a potential health risk. Could someone pl


stepper motors and bx-24 chip

Started by Robin in BasicX15 years ago 3 replies

Yikes I'm in this way over my head! I'm trying to control 10 six wire stepper motors that will all be doing the same thing at the...

Yikes I'm in this way over my head! I'm trying to control 10 six wire stepper motors that will all be doing the same thing at the same time. I have the motors and some uln2803a IC's. I know I need some relays (DPDT?) then I will need to do some soldering (I have a Hakko) I'm sure


Serial Splitter or multi-1-wire interface?

Started by James Mansion in BasicX14 years ago

I want to talk to a number of 1-wire LANs (about 5) each of which has multiple devices on it. I also have some relays to...

I want to talk to a number of 1-wire LANs (about 5) each of which has multiple devices on it. I also have some relays to control. I'd like to do this from a device with just one serial port (a PDA, as it happens). I have a BX24 dev kit. Now, in


BasicX Relay Controller

Started by maxpandemonium in BasicX11 years ago 1 reply

Hello all. Is it possible to use the bx24 as a relay controller? I'm afraid I don't know enough about the bx24 to know if it would be useful...

Hello all. Is it possible to use the bx24 as a relay controller? I'm afraid I don't know enough about the bx24 to know if it would be useful in this role. I would like the bx24 to recieve commands from a PC via serial connection to control 16 relays, connected to solenoids. Thank you for your advice. ------------------------ Yahoo! Groups Sponsor --------------------~--> =20 Everyth


ULN2803a best practice

Started by "David E. Basile" in BasicX11 years ago 4 replies

I'm getting back into the BasicX and old age keeps me from retaining a lot of information . I have a a ULN2803a and I'm trying to fire some...

I'm getting back into the BasicX and old age keeps me from retaining a lot of information . I have a a ULN2803a and I'm trying to fire some 24vdc air valves so I have a few questions. I'm not sure what the current rating on the valves are 1) I have several 12vdc relays and I'm wondering if it would be better to drive the relay to trip the valve or just use the 2803 to drive the v


ADC and I/O Issue

Started by Mario in BasicX13 years ago 1 reply

I am currently using Pin 20 to read a voltage using the ADC. Pin 20 is initialized as a High-Z pin. Connected to Pin 20 is an...

I am currently using Pin 20 to read a voltage using the ADC. Pin 20 is initialized as a High-Z pin. Connected to Pin 20 is an output of a op amp that is outputting about 7.6 volts. When I want to take a reading I close a set of relays that connects the signal to be measure


Multiple Outputs

Started by abefanning in BasicX11 years ago 9 replies

Am trying to build a simply irrigation controller with 25 zones. Each zone would be sequenced on for about 15 minutes at a time until all 25...

Am trying to build a simply irrigation controller with 25 zones. Each zone would be sequenced on for about 15 minutes at a time until all 25 zones were activated. I am controlling each zone with a Rayex LU-5 PC mount relay, that has a coil voltage/ohms of 5VDC/125 ohms. What is the most reliable way of controlling these 25 relays with the BX-24? I've already tried, a bit quickly,...


output to control higher-load components

Started by Michael Krause in BasicX13 years ago 5 replies

I need to control components (light bulb, speaker, solenoid) that need more current than the basicx chip can deliver. I'm ...

I need to control components (light bulb, speaker, solenoid) that need more current than the basicx chip can deliver. I'm looking a good interface, and I'm thinking of using relays, or i/o modules, driven by external power supplies. Which is a good way to go to, are there


LCD+ Keyboard

Started by Edward Ringel in BasicX11 years ago 2 replies

Hi All, I am new to BASICX although I've programmed on and off for quite a while. I am trying to use the LCD+ to read a 4x4 keypad (home...

Hi All, I am new to BASICX although I've programmed on and off for quite a while. I am trying to use the LCD+ to read a 4x4 keypad (home made). I have made successful contact with the module (no problem writing to the display screen, no problem running the relays) but I can't seem to communicate with the keypad. When the module is powered up but not attached to the BX-35, it recogniz...


Problem with voltage output of pins of the BX-24

Started by Anand Ramaswamy in BasicX14 years ago 3 replies

Hi, I am trying to build a lego car controlled by the BX-24. The problem is when I do commands like call putpin(5,0) I get an...

Hi, I am trying to build a lego car controlled by the BX-24. The problem is when I do commands like call putpin(5,0) I get an output on pin five of about .00036 mVolts, and when I do call putpin(5,1), I get an output of about 0.8 volts. The relays don't recognize t


New LCDX function library

Started by Tom Becker in BasicX12 years ago 2 replies

LCDX users: A new LCDXLib.bas, the LCDX function library, is available at http://groups.yahoo.com/group/basicx/fil es/LCDX/ . ...

LCDX users: A new LCDXLib.bas, the LCDX function library, is available at http://groups.yahoo.com/group/basicx/fil es/LCDX/ . This update corrects a backlight flicker when setting relays and other output. Thanks to Jim (StJohnz?) for raising the flag and Chris at Netmedia for fixing it.


Relay Purchase

Started by c04203420 in BasicX12 years ago 14 replies

Im about to make a bid on ebay for some cheap solid state relays. The details are: OPTO 22 Manufacturer Part Number: MP240D4 ...

Im about to make a bid on ebay for some cheap solid state relays. The details are: OPTO 22 Manufacturer Part Number: MP240D4 Description: RELAY, SOLID STATE 4A; Voltage, load RMS min:24V; Voltage, load RMS max:280V; Current, load:4A; Current, surge:85A; Voltage, control DC min:3V; Voltage, control AC min:24V; Voltage, control AC max