When the design is done and its time to get physical, WTSi goes the extra mile to get it right the first time.   


WTSi believes in test-driven electronic product development. We start your project with qualification testing in mind.


"Internet-of-things" devices are getting smaller and their functionality is increasing daily. WTSi helps you capture your IOT market and keep it.


High strength, rigid, fatique resistant, transparent, flexible, scratch resistant, low shrinkage, heat resistant, chemical resistant and more.


Your code needs to be robust and extensible. At WTSi, we help you plan for your future software development needs. 


Anyone with a smartphone is your potential new customer.  Let WTSi design *your* device and smartphone app for the Internet-of-Things revolution!

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity 



Getting your product connected to the cloud should be a priority as "The Internet-of-Things" (IoT) technology is here to stay.   Remote tracking, inventory monitoring, device configuration, and other communications services are increasingly being added to the devices that surround us in our daily lives: residential utility meters, refrigerators, passports, voice-activated online-ordering devices, etc. The market is limited only by your imagination.   WTSi is heavily invested in the most common enabling technologies that feed the Internet-of-Things ecosystem:  Bluetooth Low Energy, Zigbee,  RFID, NFC, 6LoWPan, and WiFi to name just a few.  Let us show you how wireless connectivity can improve your bottom line. 

THE USER EXPERIENCE - Development for the internet-of-things (IoT) entails many engineering disciplines and cutting edge technologies.  However, none of these disciplines or technologies appeared  overnight;  PC and smartphone hosted applications are nothing new and neither is bluetooth or "the cloud".  What's new, as regards the Internet-of-Things, is the UX (user experience) - a melding of existing technologies into a seamless, and often invisible, solution. From the UI (user interface) to the propagation of electromagnetic waves,  your final product is all about the UX.

Realistically, UX is just a new name for the HMI (human-machine interface) - just as HMI was a new name for some other long-forgot acronym that meant a holistically well-engineered and well-designed system.  Just as people love their well-engineered car or their well-designed smartphone,  you want them to love your device.  The trick is, and always has been, being better than the competition.

WIRELESS COMMUNICATIONS - Many wireless protocols are involved in the internet-of-things:  most notably, bluetooth low energy (BLE), Zigbee, and Wi-Fi for the wireless short-haul and, of course, the cellular network (on which mobile phones depend) for the longer-haul.  Data passed through one or more of these wireless protocols finds its way to our modern-day broadband communications network (the internet) through gateways and/or routers and presumably comes to rest in a database on 'the cloud' (until the data falls victim to 'cloud computing' services and is eventually monetized).    It should also be noted that these wireless communications protocols are two-way communications, and thus, the Internet-of-Things endpoints can optionally be controlled, reconfigured and upgraded from the cloud.        

EMBEDDED HARDWARE AND SOFTWARE - The Internet-of-Things wireless communications devices are often very sophisticated, tiny, battery-operated devices that, unbeknownst to the user, are leveraging hundreds of man-years of development to accomplish what may appear to be a simple task such as  reading the temperature or determining if a door is up or down or stuck.   Each device must adhere to the strict standards and subsequent certifications to work well in the IOT 'system'.   To do this, each IOT device has components that are standard IOT device components based on standard embedded hardware and embedded software components (from suppliers like Texas Instruments,  Silicon Labs,  and LSR to name just a few).  What makes each IOT device unique is typically the additional embedded hardware to support the system requirements and, of course,  additional embedded software per the same requirements; this is where the product development comes into play.

DATA EXCHANGE - There are many data-exchange formats for getting data from the IOT devices to the cloud.  One lightweight format we like to use is JSON (JavaScript Object Notation). Other more full-featured formats are MQTT (Message Queue Telemetry Transport), CoAP (Constrained Application Protocol), XMPP (Extensible Message and Presence Protocol), SOAP (Simple Object Application Protocol), and REST (Representational State Transfer).  Many factors drive the selection of a given format including the host platform and suitability-to-task issues; development costs and the project schedule are also often considered.                                                                                

THE CLOUD SOLUTION - Depending on the application, your cloud solution could range from local server to a hosted server to a full-featured, high-reliability Amazon AWS managed server.   WTSi has had great success with all three solutions and, again, suitability to task is the key consideration.  For example, a security system for your business could use a local server system whereas a security system for an elementary school or hospital may require the high-reliability of an AWS server.

Also, Google and Apple have fortunately both committed heavily (see our Internet-of-Things blog post) to making it easy to connect your device to internet-of-things ecosystems with published APIs and sample code for developers (see and  Unfortunately however, neither company is helping with the critical backend services. The developer needs to connect to backend services, control access to services and sensors, and send notifications across a growing number of channels. WTSi will help you fill this critical gap.   

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity



Recent advances in the field of nanotechnology, and specifically biosensors, are requiring new and improved methods for detecting and characterizing electro-chemical reactions between nano-scale semiconductors and specific body fluid components.   New electro-chemical probing techniques are required and are being fabricated directly onto the host semiconductor device alongside the nanowire device.  Additionally, what was previously laboratory-grade instrumentation is now required on portable, handheld devices and the state-of-the-art redesign of the sensor interface (the analog-front-end, or AFE) is necessary for current detection in the fempto-amp (10-12 amp) range.  Also, lock-in amplifier techniques are required to mitigate the issues associated with the DC component of the signal (at the nanowire) getting lost in the semiconductor flicker (1/f) noise.   WTSi is committed to working with our customers and partners to address these inter-disciplinary electronic and chemistry-related issues while migrating new nano-technology devices from the lab to production-quality electronic medical devices and accessories.

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity




Trying to figure out which Bluetooth is right for you?  Let us help.  WTSi has created several bluetooth products for our customers and we continue electronic product development on custom bluetooth products and bluetooth upgrades to our customers legacy products.  We have a wide assortment of development tools and specialized test equipment for testing your product before deployment.  We develop Android and Apple iOS applications for smartphones and tablets and we also work hand-in-glove with third-party Android and Apple iOS developers who may or may not have the expertise and/or tools necessary for debugging complicated system-level issues.  WTSi can update your legacy products or help you create new products with additional features and benefits. 


  • legacy device upgrades for wireless connectivity
  • test equipment 
  • medical devices
  • key fobs
  • health and fitness devices
  • mobile hands-free devices 

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity



Zigbee mesh, or Zigbee-related mesh technologies are the backbone of the Internet-of-Things technology movement.  6LoWPAN is a Zigbee derivative which inherently provides IPv6 enhancements for the future of the internet.  Knowing how to manage the battery power in your mesh network solution endpoints is critical to your success.  WTSi can help you with this.  Additionally, if your product is to function in an industrial, M2M, or otherwise natively harsh environment, WTSi can help design a system that maintains reliability using antenna diversity, frequency diversity,  and hi-reliability embedded coding techniques.   


                      • commercial and home security
                      • home automation 
                      • industrial automation
                      • machine-to-machine (M2M) communications
                      • asset tracking
                      • energy monitoring
                      • medical devices

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity



Connectivity to a LAN, and possibly the internet, via a hardwired or wireless connection to a local router is often desired.   While some IoT data is getting on the cloud through smartphones and GPRS, much more is being gathered by low power wireless networks (like Zigbee and 6LowPAN) and then passed to a WiFi-enabled or ethernet-enabled gateway.   WiFi technologies are constantly evolving but support for legacy protocols is always a concern.  Additionally, hardwired Ethernet offers advantages that will not be found in wireless connectivity, namely, high-reliability and the ability to power (and quite possibly charge) devices directly from your Ethernet infrastructure.  Let WTSi help you decide if your products can benefit from the features these two technologies provide.


  • power-over-ethernet (PoE) devices
  • Internet-of-Things system gateways 

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity



GPRS in your alternate route to internet connectivity.  This technology utilizes the GSM cellular network infrastructure to transfer your data from remote/mobile devices and systems.  Aside from the obvious advantages of GPRS, you are only charged for the amount of data you send and, in most scenarios, this is a minimal amount of data.  There are issues with GPRS system design that need to be considered including maintaining power on your remote devices, the lack of cellular coverage in many remote areas, and a host of other considerations that WTSi will help you overcome with sound systems engineering design decisions.

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity



Internet-of-Things (IoT) data, by definition, is headed to the cloud, and if you want to get there you need a gateway.  WTSi has designed several gateways (and gateway-ish) devices and apps for just this reason. However, not all gateway data is bound for the internet;  WTSi designed a BTLE-to-Zigbee gateway for displaying localized shooting-range data on tablets or smartphones.  Additionally, one can consider their smartphone as a BTLE-to-WiFi gateway as both technologies exist in modern smartphones - all that is required is an app - which we have done that also.  Call WTSi to discuss your system requirements - quite possibly its easier than you think to get your system component linked together.


  • Internet-of-Things
  • inventory
  • asset tracking
  • home automation
  • industrial monitoring and configuration (M2M)

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity



RFID has the distinction of being able to 'localize' your assets, that is, help you track them.  It has distinct advantages over bar-codes including its resistance to weathering.  There are many different RFID protocols and each has its niche.  Active RFID chips extend your range but require a power source.  Passive RFID requires no battery but may require extreme localization (less than one foot) or a high power (2Watt) reader.  WTSi will discuss your requirements with you and help you decide if active or passiver RFID is the correct solution for you.  WTSi can also provide you with a battery-powered handheld RFID reader solution to complement your existing RFID system


                      • inventory
                      • asset tracking
                      • asset identification
                      • parking garage or parking lot access
                      • gated-community access
                      • event access (wristbands) 

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity




Data security is usually an afterthought for most of our customers but at WTSi we like to discuss your long-term security requirements with you up front. Security considerations often drive the hardware component selections - and the wireless protocol selections - on many types of wireless systems. WTSi doesn't want your competitors to have a  security 'bullet' on their product spec sheet that you do not have on your product's spec sheet.

Internet-of-Things(IoT)   Bio-Technology    Bluetooth    Zigbee   WiFi/Ethernet   GPRS   Gateways   RFID   DataSecurity



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