Has anyone used the GE HS12P or HS15P humidity sensors? If so, what drive circuitry did you use with it in order to interface to a...

Has anyone used the GE HS12P or HS15P humidity sensors? If so, what drive circuitry did you use with it in order to interface to a uC? Alternatively, does anyone have any other favourite humidity sensors instead of this one that they could point me at? TIA. Rog.

I have a need to monitor water flow rate for a standard residential water line. Can anyone suggest an inexpensive device?

I have a need to monitor water flow rate for a standard residential water line. Can anyone suggest an inexpensive device?

Hi, For a small project I need to measure the current through an AC lightbulb. I am using a microcontroller with AD converter and a triac to...

Hi, For a small project I need to measure the current through an AC lightbulb. I am using a microcontroller with AD converter and a triac to control it. Any suggestions for the current sensor?

I want to control a system including DSP+FPGA+FLASH+ADC+sensor by USB port, program all chips by USB . what kind of bus shall i use? is there...

I want to control a system including DSP+FPGA+FLASH+ADC+sensor by USB port, program all chips by USB . what kind of bus shall i use? is there any reference design projects online? thanks!

Hello, I need to be able to receive sensor readings such as temp, wirelessly over a distance of about 100 feet. I have to monitor 5 sensors. ...

Hello, I need to be able to receive sensor readings such as temp, wirelessly over a distance of about 100 feet. I have to monitor 5 sensors. What is a good wireless link that can do this? Matched transmitters/recievers? Is there a receiver that can read from multiple transmitters? Thank you for your input. A

I want to test the I2C protocol between two STM32 (STM32L152RC) microcontrollers. Can somebody guide me on how to do it or suggest tutorials? I...

I want to test the I2C protocol between two STM32 (STM32L152RC) microcontrollers. Can somebody guide me on how to do it or suggest tutorials? I have seen some online portals where they are communicating between a microcontroller and any sensor. That I have done already. Now I want to test it between two MCU boards.

Hi, Could I use ultrasonic or light sensor or anything else to detect direction of 2D motion including left/right and up/down? I need to know...

Hi, Could I use ultrasonic or light sensor or anything else to detect direction of 2D motion including left/right and up/down? I need to know the exact direcion. Thanks!

I'm looking for the smallest embedded device I can find that can do: 1. Infrared sensor 2. Wireless connection (can connect to an G router, for...

I'm looking for the smallest embedded device I can find that can do: 1. Infrared sensor 2. Wireless connection (can connect to an G router, for example, I'll have to check the distance that might cover, otherwise maybe N will have to be used) 3. DHCP 4. Low power consumption 5. User solar power to save battery life? At least have a couple out of 5, and I can try to work on the others. ...

Hello I am trying to retrive a revision number of a Prism (position sensor)(CutlerHammer make), and i am using netview to see the network on...

Hello I am trying to retrive a revision number of a Prism (position sensor)(CutlerHammer make), and i am using netview to see the network on SST master Card (CutlerHammer) .i am sending a 0E(getattribsingle) 05(connection) 00(instance) 01(attributeId) this gives me an error as Arrrtibute not supported .why this is so i think i am doing right since revision is a class attribute i should ...

Greetings, I am trying to design and implement a very simple camera that would capture VGA quality images and store them to flash memory such...

Greetings, I am trying to design and implement a very simple camera that would capture VGA quality images and store them to flash memory such as SD or MMC. I am seeking the advice of the experienced people out there about the recommendations for a microcontroller and image sensor combination. I am looking for a fairly low cost solution since it is only a hobby. I know that I can get ...

Hi I am hoping someone might be able to help point me in the right direction. I have an embeeded application running in a PIC in which is...

Hi I am hoping someone might be able to help point me in the right direction. I have an embeeded application running in a PIC in which is sending sensor data over a wireless network. We want to keep the number of bytes in each packet sent to an absolute minimum. Some of the values we want to send back and forth are Floats which takes 4 bytes. We'd like represent some of the values ...

My application is a temperature controller that uses a surface temperature sensor and Triac to adjust a heating element using a uC using PID...

My application is a temperature controller that uses a surface temperature sensor and Triac to adjust a heating element using a uC using PID control. Although I only need about a +/- .5 degree accuracy, I'm aiming for a temperature range of 0 to 200 degrees C which seems to be comfortably out of the range of most thermistor solutions but seems to be within the capabilities of a standard RTD. I...

hi , i m using philips microcontroller and want to interface its A/D converter to my application temp. sensor (lm35).i m doing this on...

hi , i m using philips microcontroller and want to interface its A/D converter to my application temp. sensor (lm35).i m doing this on devlopment kit of philips p89lpc935 . can anyone suggest any prerequisites for that?let me tell you i have already filled its contol registers.i have tried this with edge triggered & immediate starting mode.but unable to get the result on lcd.there is no pro...

Hi, I have a OVM7690-R20A CameraCube image sensor from OmniVision, the device is very small I need to wire it with a protoboard. Does anyone know...

Hi, I have a OVM7690-R20A CameraCube image sensor from OmniVision, the device is very small I need to wire it with a protoboard. Does anyone know how this device can be wired ?? Thanks in advance --------------------------------------- Posted through http://www.EmbeddedRelated.com

A colleague of mine is looking for a cheap microcontroller board with Ethernet and a temperature sensor. Any suggestions? My google searches...

A colleague of mine is looking for a cheap microcontroller board with Ethernet and a temperature sensor. Any suggestions? My google searches so far haven't hit the mark but I'll keep looking. Thanks. -- - Mark -> --

Using USB2.0 at Highspeed mode to send data from sensor to PC, the MaxPktSize is set to 512 bytes, when the size of the data is not the mutiple...

Using USB2.0 at Highspeed mode to send data from sensor to PC, the MaxPktSize is set to 512 bytes, when the size of the data is not the mutiple of 512, 5200, for example, it will not send the last 80 bytes. Who can tell me what's going wrong? Thanks!

I'm working on a project for the 2008 Xprize cup. (unreasonablerocket.blogspot.com) or...

I'm working on a project for the 2008 Xprize cup. (unreasonablerocket.blogspot.com) or (http://blog.wired.com/wiredscience/2007/10/qa-unreasonable.html) I've been using RC servo connectors for all low current connections both sensor and control connections. They are cheap and light. Alas I'm not really happy with them and I'm looking for an alternative... I'm looking for a small 2...

Hi, I need an opinion: a customer wish to comunicate with our board (that uses a Freescale MC56F8037 to control a BLDC motor with hall sensor...

Hi, I need an opinion: a customer wish to comunicate with our board (that uses a Freescale MC56F8037 to control a BLDC motor with hall sensor for commutations and an encoder for position sensing) via a RS485 bus with a baudrate of 230400 bps. the frames are 16byte in length and a reply is expected within 3 msec (communication should be every 80 msec). I'm not sure that the 8037 can hand...

I hope all of you are doing well. I have come across a challenging project and I need your advice. Its a security application with the...

I hope all of you are doing well. I have come across a challenging project and I need your advice. Its a security application with the following scenario: Doors with computerized locks (biometric/swipecard/pincode), the locks access a central server for access authentication. The catch is that the communication between the lock (embedded computer/PCB etc) and the server has to be wireles...

HI, well, i have got an assignment regarding the plant optimization...problem is to contrl the gas-plant with sEOS or cooperative scheduler. I...

HI, well, i have got an assignment regarding the plant optimization...problem is to contrl the gas-plant with sEOS or cooperative scheduler. I am not able to how to check the flow of liquid/gas through the sensor....flow rate of the liquid varies between 0 to 100% (0 pulses/m and 6000 pulse/minute respectively).