Henway Technologies Custom Circuit Board Design HUDSON, OHIO
Schematic design PCB layout Firmware PCB assembly Production HUDSON, OHIO
HENWAY HAS 10 YEARS OF EXPERIENCE helping customers through the custom circuit development process. No experience needed for engagement We create electronics requirements docs Host weekly teleconferences Internal design reviews Produce and debug prototypes Deliver documented samples www.henwaytech.com 3
OUR HISTORY WITH BLUETOOTH We started in the early days of Bluetooth Classic (SPP and A2DP) Over 7 years experience with Bluetooth Low Energy (4.0, 4.2 and 5) www.henwaytech.com 4
IN 2020 alone we’ve worked on over 12 unique Bluetooth projects. 3 more starting soon EXAMPLE ⦿ Automotive rack tracking (Est. sales volume 300k Bluetooth radios per year) ⦿ LR Bluetooth radios powered by Hydrogen Fuel Cell technology for military use ⦿ Bluetooth apps for medical grade sanitation devices ⦿ Putting Bluetooth radios on K-9 units for next generation emergency response teams ⦿ and many more www.henwaytech.com 5
BLUETOOTH DATA LOGGING We can do anything involving reading from sensors, storing the data, and transmitting logged data via Bluetooth EXAMPLE Designed a battery powered device that resides near a motor shaft that counts the revolutions of the motor and its speed and sends this information over bluetooth www.henwaytech.com 6
BLUETOOTH DATA LOGGING Compact wearable Bluetooth designs in printed ink sensor application EXAMPLE Designed a battery powered device that auto-calibrates and auto-zeroes a conductive ink force sensor and sends this information over Bluetooth to a mobile app. The mobile app is able to keep connection with 2 devices simultaneously. www.henwaytech.com 7
BLUETOOTH DATA LOGGING Using Bluetooth to quantify machine performance and assist those responsible for preventative maintenance UP & COMING PROJECT A device that captures, analyzes in real-time, and buffers large amounts of data from a special motion sensor. Special algorithms are used to determine if motor vibrations are within tolerance. Operators can view this information on a mobile app in real time or download buffered data for in-depth analysis. www.henwaytech.com 8
HIGH RELIABILITY Transfer data safely without corruption EXAMPLE Designed battery powered device that took commands from a gateway and streamed accelerometer readings to the gateway via bluetooth. Imagine 6 devices and a hub that communicates with sensors one by one in a high vibration, harsh environment. Anything can happen www.henwaytech.com 9
HIGH RELIABILITY EXAMPLE ⦿ Made sure data was sent and received without corruption ⦿ Sensor values were stored until data was received ⦿ The system detected if the data was corrupted ⦿ Self recovery ⦿ Performed self-diagnostics ⦿ Sealed design non-user replaceable batteries www.henwaytech.com 10
LONG BATTERY LIFE We choose the best settings for the longest battery life. And we verify our results using SiLabs tools EXAMPLE Designed a sensor data-logging device where we needed to use advanced methods for optimizing the duration of data transfer and frequency. www.henwaytech.com 11
LONG BATTERY LIFE Make power assumptions Build Prototype Verify the results ADVERTISING TX DETAILS ADVERTISING TX DETAILS www.henwaytech.com 12
HIGH SECURITY We’ve implemented all three levels of Bluetooth built- in security and we’ve developed our own security and encryption EXAMPLE Designed a device that stores secret info that sends and receives sensitive information over Bluetooth to a mobile device or PC. We have also implemented our own security on top of the existing security www.henwaytech.com 13
HIGH SECURITY EXAMPLE ⦿ All the Bluetooth communication for this project, even the advertising data, was encrypted using AES-128 key ⦿ Implementation of a Diffie – Hellman 3072 bit key-exchange for pairing on an 8-bit device. ⦿ Secure OTA update (download encrypted firmware image, decrypt and update in real time) www.henwaytech.com 14
BLUETOOTH AUDIO We’ve used Bluetooth audio profiles for non-audio data transfer EXAMPLE Designed a battery powered medical device for contact-less heart rate monitoring www.henwaytech.com 15
BLUETOOTH AUDIO EXAMPLE ⦿ Analog circuitry captures the patient's heartbeats ⦿ Used a Bluetooth classic module running A2DP profile to send the heartbeat information encoded as audio signal to a mobile app ⦿ Mobile app records the information and shows it in real time ⦿ Low cost: there was no processor on the board, only analog circuitry and Bluetooth classic module. www.henwaytech.com 16
APP-LESS WAY TO USE THE BLUETOOTH PROTOCOLS FOR IOS AND ANDROID Control Android and iOS devices without installing any app EXAMPLE Designed a small, 3-Button device that fit on your finger for the adrenaline seeking selfie market www.henwaytech.com 17
APP-LESS WAY TO USE THE BLUETOOTH PROTOCOLS FOR IOS AND ANDROID EXAMPLE Using 3 buttons and SIG standard profiles, the user can control their phone, in this way: Play / Pause music. Play Switch apps next / prev track Control phone volume Open camera app Take pictures / Capture video Answer phone calls www.henwaytech.com 18
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