MK14 nRF52805 Module + Bluetooth 5.2
- Nordic® Semiconductor nRF52805 SoC solution
- Bluetooth 5 (2 Mbps,CSA #2)
- 64 MHz ARM® Cortex-M4F CPU
- 192kB Flash and 24kB RAM
- 1.7 V to 3.6 V
- UART,SPI,TWI,ADC
- 12.1 x 8.9 x 2.0mm (with shield)
- 8 GPIOs
- Antenna(MK14A – PCB antenna , MK14B – u.FL connector)
- Highly flexible multiprotocol SoC ideally suited for Bluetooth® Low Energy, ANT+ and 2.4GHz ultra low-power wireless applications
Product Instruction
The MK14 series nRF52805 module is a very low-cost Bluetooth module designed by MOKOsmart using the latest Nordic Bluetooth 5.2SoC-nRF52805.
MK14 Bluetooth 5.2 module has a very small size of 12.1mmx8.9mm, with an RF design that has been professionally adjusted by MOKOsmart engineers, and can be quickly laid out on the user’s PCB. The MK14 series has multi-protocol support Bluetooth Low Energy and 2.4GHz, its radio can provide up to +4dBm power output and -97dBm sensitivity (1 Mbps Bluetooth low energy), link budget of 101dBm, with 2 Mbps low energy Bluetooth high Rate mode and enhanced channel selection algorithm #2 (CSA #2) function.
MK14 series Bluetooth nRF52805 module has two different models — MK14A and MK14B
MK14A
MK14A integrates a high-performance PCB antenna
MK14B
MK14B uses a u.FL connector and requires an external antenna.
Product Specifications
| Detail | Description |
| Bluetooth | |
| Feature | Bluetooth® Low Energy
1M LE PHY CSA #2 |
| Security | AES-128 |
| Radio | |
| Frequency | 2360MHz - 2500Mhz |
| Modulations | GFSK at 1 Mbps rates |
| Transmit power | +4 dBm maximum Configurable down to -40dBm |
| Receiver sensitivity | - 97 dBm at Bluetooth® LE/2.4GHz 1 Mbps mode
- 94 dBm at Bluetooth® LE/2.4GHz 2 Mbps mode - 94 dBm at 1 Mbps ANT mode |
| Antenna | PCB trace antenna(MK14A) External 2.4Ghz antenna(MK14B) |
| Mechanical Design | |
| Dimensions | Length: 12.1mm±0.2mm
Width: 8.9mm±0.2mm Height: 2.0mm+0.1mm/-0.15mm |
| Package | 14 Plated Half-hole pins |
| PCB material | FR-4 |
| Impedance | 50 Ω |
| Hardware | |
| CPU | ARM® Cortex®-M4 32-bit processor with FPU, 64 MHz |
| Memory | 192kB flash / 24 kB RAM |
| Interfaces | SPI master/slave with EasyDMA
UART (CTS/RTS) with EasyDMA Quadrature decoder (QDEC) 2x real-time counter (RTC) 2x 12-bit, 200ksps ADC 10 GPIOs |
| Power supply | 1.7V to 3.6V |
| Operating temperature range | -40 to 85 ℃ |
| Clock control | 32.768 kHz +/-20 ppm crystal oscillator |
| Power regulator | DC/DC regulator setup |
Support Links
| Item | Description | Link |
| Main Chip Solution | nRF52805 Product Specification | https://infocenter.nordicsemi.com/pdf/nRF52805_PS_v1.2.pdf |
| User Mannual | Bluetooth UART Transparent Transmission | https://www.mokosmart.com/pdf/BluetoothGuide-V1.0-20091001.pdf |
| Datasheet - MK14 Bluetooth Module | ||
| Schematic | Schematic - MK14A | |
| Schematic - MK14B | ||
| Product List - Bluetooth Module | https://mokosmart.com/pdf/MOKO%20Bluetooth%20Module%20Family-20090401.pdf |