NRF52832-MDK (Micro Development Kit) is a completely open source project. We share all hardware design information / code / documents in GitHub with the community. The nRF52832 SoC is a powerful, highly flexible ultra-low power multiprotocol SoC ideally...
Based on the nRF52832 microcontroller, featuring a Power Amplifier and LNA giving the development board a transmission power of 18.9dBm, and receiver sensitivity of -96dBm. This board has 30X the transmission power of a regular nRF52832, resulting in...
Specifications Nordic nRF52832 Raytac MDBT42v module0.96" OLED display breakoutST Micro LIS2D12 accelerometer2 x Side mounted buttons40 mAh LiPo batteryBuzzer SMD 5 mm x 5 mm PCB Design This is a two-PCB design, with the 0.96 inch OLED PCB soldered...
Features:* Flip dot display 7x7 pixels.* Has Bluetooth 5 for connecting to phones (Nordic nRF52832) (Nordic Bluetooth UART).* Uses 24V power supply (because display module needs that much).* Has 2 tact switches (haven't decided their functionality yet).*...
Main components: - Bluetooth 4.0 module based on CC2541/2540 chip (HM-10), - any raindrop sensor, - few manipulators (actuators), - Nordic nRF52840 bluetooth 4.0 LE module. The toolchain: MinGW, GNU-ARM-GCC, Black Magic Probe (BMP)...
[full walk through video coming soon] HACKING THE B20 FITNESS TRACKER'S nRF52832 ARM CORTEX MCU AND ACCESSING ADS1292 BIOIMPEDENCE DATA Hacking the fitness tracker is very simple, all you have to do is solder wires to four (V+, GND, clock, data) big...
The hardware identified so far is the following: - nRF52832 chip - Color Memory LCD (panel by JDI, most likely) with backlight, using ST7301 controller - One touch button (handled by 233DH IC) - Vibration motor - BMA253 tri-axis accelerometer - Heart-rate...
Full write-up on my website, including imgur gallery and github repo: https://iamericmin.github.io/tm4.htmlHARDWARE On the hardware side of things, the watch houses a Nordic nRF52832 SoC. It is an ultra low-energy System-on-a-Chip that has built-in Bluetooth...
Core Design Principles Minimal features: Time, Calendar, NotificationsAlways-on displayLong (days+) battery lifeHacker-friendly, reproduciblePlanned iterations (see Project Logs):Breadboard with basic timekeeping, MCU and display (done)Self-contained...
Sensing MethodThe sensor will be based on the classical infrared reflection method (photoplethysmography or PPG). Initially I planned to use a piezo sensor for its low cost and low power consumption (passive sensor). The method is described in this interesting...
Check out my latest project Hacking Wearables for Medical Device Development. Inexpensive Arduino compatible nRF52 prototyping platform used by MATTER Lab. Tutorials & code for gesture recognition and machine learning. M3 Specs: Display: 0.69" 16*64...
Most AR glasses out there are bulky, over-engineered and proprietary. And - being basically glasses with electronics - they only come in a few fixed sizes and don't fit everyone. But what if there was another way? uGlass started out as an idea for...
It all started as a simple telemetry system for my motorcycle but quickly turned into a more generic GPS tracker and logger that can be used to log the tracks and related statistics on SD card. The Nextion display shows some information in real time,...