MK08 nRF52840 Module
- Nordic® Semiconductor nRF52840 SoC solution
- Bluetooth (2 Mbps,CSA #2,Advertising Extensions,Long Range)
- 64 MHz ARM® Cortex-M4F CPU
- 1MB Flash and 256kB RAM
- 1.7 V to 5.5 V
- UART,SPI,TWI,PDM,PWM,ADC
- 21 x 13.8 x 2.3mm (with shield)
- 46 GPIOs
- Antenna(MK08A – PCB antenna , MK08B – u.FL connector)
- Highly flexible multiprotocol SoC ideally suited for Bluetooth® Low Energy, ANT+, Zigbee, Thread (IEEE 802.15.4) ultra low-power wireless applications.
Product Instruction
MK08 series nRF52840 modules are designed using Nordic Higher-end Bluetooth 5 SoC-nRF52840. Its transmission power can reach +8 dBm, built-in 1MB Flash and 256 KB RAM, fully supports Bluetooth 5, 802.15.4 (including Thread), ANT and private 2.4GHz wireless technology, and has a full-speed USB 2.0 controller and a series of peripherals (can support many devices through EasyDMA), including a four-channel SPI interface. MK08 nRF52840 module can also be powered by a power supply above 5V, such as a rechargeable battery power supply, with a power supply range of 1.7V~5.5V. MK08 Bluetooth 5 modules can be widely used in high-performance HID controllers, smart home and industrial and IoT devices. MOKOsmart can provide fast and professional technical support for software and hardware design.
MK08 series Bluetooth nRF52840 module has two different models — MK08A and MK08B.
MK08A
MK08A integrates a high-performance PCB antenna.
MK08B
MK08B uses a u.FL connector and requires an external antenna.
Product Specifications
| Detail | Description |
| Bluetooth | |
| Feature | Bluetooth® Low Energy Bluetooth® Mesh 1M LE PHY 2M LE PHY Coded LE PHY (Long Range) Advertising Extensions CSA #2 |
| Security | AES-128 NIST SP800-90A and SP800-90B Chacha20/Poly1305 AEAD SHA-1 and SHA-2 HMAC RSA SRP ECC Application key management using derived key model |
| LE connections | Concurrent central, observer, peripheral, and broadcaster roles with up to twenty concurrent connections along with one observer and one broadcaster |
| Radio | |
| Frequency | 2360MHz - 2500Mhz |
| Modulations | GFSK at 1 Mbps, 2 Mbps 250kbps (IEEE 802.15.4-2006) and Long range (125kbps and 500kbps) data rates |
| Transmit power | +8 dBm maximum Configurable down to -40dBm |
| Receiver sensitivity | -103 dBm sensitivity in 125 kbps Bluetooth® LE mode -99 dBm sensitivity in 500 kbps Bluetooth® LE mode -95 dBm sensitivity in 1 Mbps Bluetooth® LE mode -92 dBm sensitivity in 2 Mbps Bluetooth® LE mode -93 dBm sensitivity in 1 Mbps nRF mode -89 dBm sensitivity in 2 Mbps nRF mode -100 dBm sensitivity in IEEE 802.15.4 mode |
| Antenna | PCB trace antenna(MK08A) External 2.4Ghz antenna(MK08B) |
| Mechanical Design | |
| Dimensions | Length: 21mm±0.2mm Width: 13.8mm±0.2mm Height: 2.3mm+0.1mm/-0.15mm |
| Package | 34 Plated Half-hole pins |
| PCB material | FR-4 |
| Impedance | 50 Ω |
| Hardware | |
| CPU | ARM® Cortex®-M4 32-bit processor with FPU, 64 MHz |
| Memory | 1MB flash, 256kB RAM |
| Interfaces | 4x SPI master/3x SPI slave with EasyDMA 2x I2C compatible two-wire master/slave 2x UART (CTS/RTS) with EasyDMA 3x real-time counter (RTC) 5x 32-bit timer with counter mode 4x 4-channel pulse width modulator (PWM) unit with EasyDMA 46 GPIOs 8x 12bit, 200ksps ADC Audio peripherals – I2S, digital microphone interface (PDM) |
| Power supply | 1.7V to 5.5V |
| Operating temperature range | -40 to 85 ℃ (-40 to +105 °C can be customized) |
| Clock control | 32.768 kHz +/-20 ppm crystal oscillator |
| Power regulator | DC/DC regulator setup |
Support Links
| Item | Description | Link |
| Main Chip Solution | nRF52840 Product Specification | https://infocenter.nordicsemi.com/pdf/nRF52840 _PS_v1.1.pdf |
| User Mannual | Bluetooth UART Transparent Transmission | https://www.mokosmart.com/pdf/Bluetooth Guide.pdf |
| Datasheet - MK08 Bluetooth Module | ||
| Schematic | Schematic - MK08A | |
| Schematic - MK08B | ||
| Product List - Bluetooth Module | https://mokosmart.com/pdf/MOKOBluetoothModule Family.pdf |