This product is a development board for Continuous Glucose Monitoring (CGM), consisting of the Flash MCU BH66F2455 with integrated CGM AFE module and the dual-core low-power Bluetooth MCU HT32F67593, providing SPI and UART communication interfaces.
This product operates with a 3-electrode electrochemical CGM sensor. It applies a specific excitation voltage to stimulate an electrochemical reaction between glucose and the enzyme in the sensor to generate a current signal, which is then converted into glucose values.
The core board is powered by a single CR920 3.0V battery and utilizes a TMR magnetic switch (TMR Switch) for power management, achieving an ultra-low storage current of approximately 100nA.
Holtek has developed a dedicated APP to help you easily monitor data during development.
This APP is currently available for iOS devices. You can search for "HT CGM" on the Apple App Store or scan the QR code below to download.
| BMHB2008 | BMHB2008-DB | BMHB2018-DB | BMHB2020 | |
|---|---|---|---|---|
| Main MCU | BH66F2475 | BH66F2475 | BH66F2455 | BH66F2455 |
| Bluetooth MCU | None
(MCU Board Only) |
HT32F67595
(BT 5.3) |
HT32F67595
(BT 5.3) |
HT32F67593
(Low Power BLE Dual-Core) |
| Product Positioning | Basic MCU Dev Board | Complete CGM Solution Board (with BLE) | Complete CGM Solution Board (with BLE) | Complete CGM Evaluation Board (with Core Board & Peripheral Test Board) |
| Sensor Support | External Connection | Built-in 3-Electrode Sensor | Built-in 3-Electrode Sensor | 3-Electrode Sensor Interface (Supports 2/3/4 Electrodes) |
| Interfaces | I/O Extension | SPI, I2C, UART | SPI, I2C, UART | SPI, UART (with Isolated USB to UART) |
| Power Supply | External Power | CR1226 Battery | CR1226 Battery | CR920 Battery (Core Board) / CR1220 Battery Holder (Baseboard) / USB Type-C |
| App Support | None | iOS App (HT CGM) | iOS App (HT CGM) | iOS App (HT CGM) & BLE Debugging Tools |
| HS Code (reference) | 8473.50.00.00-1 |
|---|
