Connected Health: Open source IoT patient monitor

Our HealthyPi 5 campaign on Crowd Supply is now live at https://www.crowdsupply.com/protocentral/healthypi-5

We released HealthyPi 4 on Crowd Supply in 2019-2020 and we have a great campaign. However, during the pandemic induced chaos that was going on, we faced major supply chain issues for critical components of our design. We started working on an alternate design with mostly discrete components for things such as power management ICs and specific TI chips that were in short supply. 

We then decided to the change the entire design while we're at it and thus was born HealthyPi 5. Here is where it will be launched on Crowd Supply (sign up for updates if you wish to know when the campaign in live).  The new specs of the HealthyPi:

• RP2040 main microcontroller
• ESP32C3 RISC-V module with BLE and Wi-Fi support
• MAX30001 analog front end for ECG and respiration measurement
• AFE4400 analog front end for PPG
• MAX30205 temperature sensor via onboard Qwiic/I²C connectors
• 40-pin Raspberry Pi HAT connector (also used to connect our Display Add-On Module)
• 1x USB Type-C connector for communication with a computer and programming the RP2040
• 1x USB Type-C connector for programming and debugging the ESP32 module
• Onboard MicroSD card slot
• On-board Li-Ion battery management with charging through USB

We also now have a TFT display for the first time to preview signals and to use the device as a standalone data acquisition system, no need for a Raspberry Pi. We still kept the name HealthyPi since it is still compatible as a Raspberry Pi HAT and plus now also it also runs on a Raspberry Pi chip !

Here is a photo of our current prototype of our display addon board and our "pro" carrier board. 

Follow more development on Crowd Supply, we will keep posting updates here as well.

We are excited to announce the launch of our crowd-funding campaign on Crowd Supply for the new HealthyPi v4. HealthyPi v4 brings together the best of HealthyPi v3 as well as HeartyPatch to create a fully open, wearable, vital signs monitoring development platform. Check it out on Crowd Supply now

Thank you to all our supporters and contributors for making HealthyPi 3 a success, both as a a Hackaday prize winner as well as a successful campaign on Crowd Supply. 

We are thrilled to announce the development of HealthyPi 4 - Unplugged, a dual-mode device that works in the same Pi HAT mode as well as in wireless "wearable" mode for standalone operation. 

Watch out for updates on this page. You can sign up on our Crowd Supply page if you wish to be notified about the launch date.

https://www.crowdsupply.com/protocentral/healthypi-v4-unplugged

If you're at DEFCON 26 at Las Vegas this year, come check us out at the Demo Labs section at Caesar's Palace:

Time: Saturday, August 11, 2018 at 2:00 PM to 3:50 PM

Place: DC26 Demolabs area at Caesar's Palace, just outside the Palace ballroom where Track 1 is held

For more details, check out the official DEFCON schedule: https://www.defcon.org/html/defcon-26/dc-26-demolabs.html

We had a great time showing the HealthyPi at Maker Faire New York 2017. We had a lot of useful suggestions as well as use cases for medical education. Primarily, medical educators were interested in showing students how the devices they use actually work inside. 

We had the ECG electrodes connected to copper rods so that people can try it out without having to stick electrodes. The ECG signal quality was surprising good even by holding the two rods, although respiration wasn't possible with hand-held electrodes.

Check out our latest update to both the firmware as well as the GUI. Major improvements are:

• ECG and Respiration signal filter performance improved
• Respiration rate algorithm gives more accurate results
• SpO2 calculation accuracy improved

As a result, you get nice looking signals, like the one in the below screen.

For more details and to get the code, read the full update on Crowd Supply.

We liked Initial State as a great IoT platform that's easy to use and easy to configure. Check out a short video that we made for demonstrating use of the HealthyPi with Initial State.

You can even embed a dashboard into a webpage, making it easy to share, like the one below.

We recently tried out the HealthyPi 3 with a Raspberry Pi 3 and a power source to create a truly wireless patient monitor. This can send the data continuously as a TCP stream for real-time monitoring or just post only the calculated values to a remote or IoT platform.

We even tried it out with a Raspberry Pi Zero to make a really small unit for wireless monitoring. Check out out crowd supply update where we have posted all the details:

https://www.crowdsupply.com/protocentral/healthypi-v3/updates/healthypi-v3-with-raspberry-pi-3-pi-zero-as-a-wireless-standalone-monitor

We will also add this code to our Github repo as soon as we get a chance to clean up the code.

Did you know that the HealthyPi board can be used by itself, without a Raspberry Pi? This allows for connection to a PC through USB. You can even use the UART pin on the header to directly connect to your own system or any other board. Beagleboard anyone??

https://www.crowdsupply.com/protocentral/healthypi-v3/updates/using-healthypi-v3-in-usb-mode-with-a-pc