GU Impex

This 18650 Battery Holder/Development Board Compatible With Raspberry Pi3B/3B+ is a board that comes with a built-in battery charging module as well as an I2C battery monitoring system for the raspberry pi. If you want to convert your project into a portable solution then this is a solution for you this board comes with a 18650 Li-ion Battery holder and a charging module for the battery this board can supply a maximum of up to 6A current to the raspberry pi via its output terminals which is more than enough for the normal operation of the raspberry pi.

This module has a built-in battery monitoring system, which can monitor the battery voltage and send the information via the I2C protocol to the raspberry pi. This can come in handy while building a self-powered raspberry pi project which can also monitor the battery voltage and alert when the battery voltage falls below a certain limit.

HM-10 Bluetooth module is a Bluetooth Low Energy (Bluetooth 4.0) development module based on the CC02541 Chip from Texas Instruments. The module communicates through UART protocol using AT commands. It can be used to communicate with all BLE devices like Fitness bands, Bluetooth trackers etc or even used as an iBeacon.

The module has a built-in CPU that supports IO expansion, 14-bit two channel ADC, 120Hz four channel PWM etc. It has a range of 60 meters and consumes very low power in standby mode. The module can act both as a Master and as a Slave.

HM-10 Bluetooth Module features, Specification:

Features: 

1. Bluetooth Protocol Specification: Bluetooth Specification V4.0 BLE
2. Supported USB Protocol: USB V2.0
3. Operating Frequency: 2.4GHz ISM band
4. Modulation Mode: GFSK (Gaussian Frequency Shift Keying)
5. Transmitting Power: ≤4dBm
6. Sensitivity: ≤-84dBm at 0.1% BER
7. It’s easy to use and completely encapsulated.
8. You can set it as slave or master.
9. You can use AT command set the baud rate
10. Coverage up to 60 meters.
11. Built-in PCB antenna.
12. UART design.
13. Support bridge direct-driven mode simultaneously (no need for extra CPU).
14. 20ms connection interval (default), quick to connect; Support AT instruction, to modify the baud rate of the serial port, gain MAC address and modify module name.
15. Support AT instruction, to adjust the Bluetooth connection interval and control the forwarding rate (dynamic power consumption adjustment).
16. Support APP; IO expansion.
17. 2 channel ADC input (14 bit).
18. 4 channel PWM (120Hz) output.
19. The RSSI successive acquisition, auto read, and notification to APP (used in anti-lost alarm).
20. Power indicator/alert.
21. Support anti-hijack password setup, modification, and restoration.
22. Ultra-low power consumption standby mode

Specification: 

• Input Supply voltage (V)  : 5
• USB Protocol  :  USB V2.0
• Operating Frequency  :  2.4GHz ISM band
• Modulation Mode  :  GFSK
• Transmitting Power (dBm)   :  ≤4
• Coverage Range (m)   :  60
• Sensitivity   :  ≤-84dBm at 0.1% BER
• Length (mm)  : 47
• Width (mm)   :   17
• Height (mm)   :  8
• Weight (gm)   :  4

HM-10 Bluetooth Module Applications:

• Bluetooth Communication
• BLE Devices
• Indoor Navigation
• Robotics