Wireless

Hi All, I am looking at developing a wireless safety system based on CIP Safety (Safety over common industrial protocool Ethernet). I just need to convert Ethernet to wireless and back again. The protocol is safe so the hardware, doesn't have to have any safety ratings as such but needs to be robust and reliable in an Industrial environment. I'm looking at a number of methods - optical, WiFi (Anybus, Phoenix contact), Bluetooth etc. and open to anything else (5g?) but generally find that in industrial environments that the response time suffers to conpensate for reliability (increasing the max number of lost packets to large numbers etc.). !Wondered if anyone had any experience? Thanks in advance

Looking to hear from folks on their "go-to" resources for HackRF One projects and builds?

This is a very general question as I'm just starting with wireless data transfer. I wish to collect data from inside a car engine compartment (under the hood) and receive this and display inside the car. No bodywork modifications!Has anyone attempted this using those low cost nRF24L... modules that seem to be everywhere? Is a more recent car say in the last 10 years electrically less noisy than the older ones and hence would allow this? There appears to be enough gaps around the bonnet for it not to be an efficient screen and radiate RF to the receiver which would be effectively behind the glass windscreen.

Hi all,  I have been given a BB-400 181-7467 to have a play with for a couple of weeks. I'm looking at possible uses in a textile factory making curtains, cushions, pillows and duvets. Does anybody have any ideas or experience with this device that could help me think about what I could possibly use this for in this situation? Thank you. 

Hi Please bear in mind I don’t know the technical terms. I am looking for a sensor system that can switch on a audio component that has a speaker. This equipment has to be weatherproof.·         The sensor system needs to be wireless and have a working distance of maximum 25meters.·         The audio system needs to be re-recordable from a laptop and reset itself after the recording has played. It needs a volume control and able to have multiple speakers.·         Speakers also need to be wireless. Please get back to me with costs involved. All equipment will be coloured black. Regards Jeff Mills 0824167111

I am looking for solution modules for  RFID. Specifically the RFID readers and appropriate antennas. I am working with a design that needs to follow the requirements listed below:1) range between tag and antenna about 10-20cm2) materials between tag and antenna: ~5cm wood plate,~5-10cm polyurethane or polyester~0-5cm air3) possible some metal bolts in PU/PE4) tag will have to be wristband5) the antenna max size about A5 paper sheetTo specify:The position of tags may differ so perfect would be circular polarized antenna. The set will possibly work off-grid so would be nice to have something requiring less power. The tag will be connecting with very low frequency about 1 tag per 1-2 seconds.I was hoping to find modules in low-frequency solutions. I am aware that distance of 10-20 cm may be a hard to get with LF/HF. I am also considering short-range UHF but the price of the module needs to be considered.I would be grateful for your advice what module to chose.Please let me know if there is anything else I need to clarify.

Were I live internet is not always present, so I must work offline very often , so I have reached maximum activations. What I have to do for continue my work offline? Thanks Roby

UV-stable polyurethene marker tags are often used to identify antenna and carrier cables on mobile masts. Are installers using any particular colour to identify 5G equipment?

Respected ,   I want to buy a radar sensor module which can detect the object or human 1000 mts away .So if any products are available as per my requirement please let me know so that i can buy in bulk. Please do respond as fast as possible.  

Hi I am a licensed ham, Vk3bzf and am attempting to set up my system for the purpose of tracking and Tx ing with low earth orbiting satellites (Leo’s). I have a the appropriate Yagi’s for 2m/70cm bands, the G5500 rotator, the gs232b, SatPC32 and ts2000. However despite having spent a number of hours trying to make it work, at present no success. The software won’t command the rotator to work. I would appreciate assistance. Best 73’s Peter Vk3bzf 

Hi My son is diabetic and has a sensor that monitors his blood glucose. This communicates via bluetooth and there is an open APS solution to tranlate this to wifi via a diy solution called Rileylink (getrileylink.org). These things are very expensive, sourced in the US and currently on back order. unfortunately we lost ours at the weekend, so the question is does anyone know of a piece of kit that can bridge Bluetooth Low Energy (BLE) to 916MHz wireless communication.  Sorry if this is the wronf area for this question (if you canpoint me to the right area, I would appreciate it). I am not technically minded, I’m afraid, so would appreciate any help   thanks chris

Hello All,I am in the process of designing a datalogger to record the use of specialist equipment in an automotive environment. To do this I am looking to use the GSM network to request small packets of data remotely from vehicles all over the UK which means I will need a GSM module/card integrated into the datalogger. Every GSM module uses AT commands to communicate with a microcontroller over a standard UART connection so it seems simple enough... However, every module I have researched has a nominal power supply requirement of 4v (3.3v - 4.6v) and when transmitting has a burst current of 2-3 amps, that cannot drop the supply voltage lower than 3.3v. I am working off a standard 12v cigarette lighter socket so I need to drop the supply down from a noisy 12-14 volts.I am using a 3.3v microcontroller so my immediate impulse would be to use a 3.3v regulator to supply the microcontroller and the GSM module (at minimum operating voltage) but this leaves me with zero tolerance for any voltage drop caused by the transmission surge current.I then thought I could use a common 5v regulator and a 3.3v to 5v logic level converter as this would supply the current to the GSM module leaving 1.7v of tolerance for a voltage drop while still being able to use the 3.3v microcontroller, but the module is rated up to 4.6v so again, not feasible...I've never seen such awkward power requirements from a component before, I played around with custom voltage regulator circuits (as I can't find any standard 4v regulators with high enough current capacity) and shifting the UART levels with line drivers but my solution just feels a bit messy.   I am planning on using the M95FA-03-STDN module from RS 908-4120.   Does anyone have any advice/experience they can share about working with these modules?   Thank you.  

I am trying to design a GPS based sat-nav with 2 channel.bluetooth to fm converter for 2 iPhones to car radio with priority for 1 phone and touch screen for my car. Has anybody done something similar?

Having put up with 2-3Mb over the1960s telephone line in my UK village for the last 12 years, my family and I were super excited to hear that we were getting 'ultrafast, full fibre broadband' to our house. However, the company that is providing it (and currently digging up the roads) missed out our address when they came to mark up the properties for connection. After several phone calls and a rather frustrated email, we are being told that they are looking into the "viability of a connection". This is because our house is attached to the village social club and we share an address. This has never been an issue for any other utility or service provider - our council tax, electricity, phone and internet bills are all separate from the social club's commercial accounts. Is there some technical reason why this might be an issue for fibre broadband networks? I'm struggling to understand what the issue is! They say "once they have decided if a connection is possible they will be in touch" but why would it not be possible? They are saying this will have to be done as remedial work after the rest of the village and at our cost!  Can anyone enlighten me, please? Or are they trying it on! Thanks in advance :o)