Features / Specs
- Board Manufacturer: No Name / NoLogo Technology (Original)
- Board Model: ProMicro nRF52840
- Main Module: Nordic nRF52840-QIAA-D0 Multiprotocol Bluetooth 5.4 SOC (64MHz 32-Bit Arm Cortex-M4 with FPU)
- Flash Memory: 1MB
- RAM: 256kB
- Supply Voltage Range: 5VDC (USB Type-C Connector)
- USB Connector Type: Female USB Type-C Socket
- Main Power Regulator: nRF52840 DC/DC and LDO regulators used
- Controllable Regulator (VCC Pin): Microne ME6217 – 3.3VDC; 800mA Max Output Current
- Supported Protocols: Bluetooth LE / Bluetooth Mesh / Thread / Zigbee / 802.15.4 / ANT / 2.4GHZ Proprietary Stacks
- TX Power: -20 to +8dBm (Configurable in 4dB steps)
- Receive Sensitivity: -95dBm in 1Mbps BLE Mode / -103dBm in 125kbps BLE Mode
- Supported Data Rates: Bluetooth 5 – 2Mbps, 1Mbps, 500kbps, 125kbps / IEEE 802.15.4-2006 – 250kbps / Proprietary 2.4GHz – 2Mbps, 1Mbps
- Current Consumption: 4.8mA Peak in TX @ 0dBm / 4.6mA Peak in RX / 0.4μA @ 3V in System OFF Mode / 1.5μA @ 3V in System ON Mode
- Security Features: Please see Product Specification for details
- Other Notable On-chip Features: USB 2.0 Full Speed (12Mbps) Controller / 32MHz QSPI and 32MHz SPI Interfaces / Type 2 NFC-A Tag with Wake-on field / Programmable Peripheral Interconnect (PPI) / 48 GPIO Pins / EasyDMA / 12-bit 200ksps ADC with 8 configurable channels / 64 Level Comparator / 15 Level Low Power Comparator / Temperature Sensor / 4x Four Channel PWM Units with EasyDMA / Audio Peripherals – I2S and Digital Microphone Interface (PDM) / 5x 32-Bit Timers with Counter Mode / Up to four SPI masters, three SPI slaves with EasyDMA / Up to two I2C compatible two-wire master/slaves / 2x UART (CTS.RTS) with EasyDMA / Quadrature Decoder (QDEC) / Three Real-Timer Counters (RTC)
- Indication LEDs: Charge Status LED – Blue / User Controllable LED – Red
- Li-Ion Battery Charge Chip: TP4054
- Compatible Battery Type: Li-Ion 3.7V
- Header Pin Pitch: 2.54mm
- Header Pin Row Spacing (Center to Center): ~15.24mm (Breadboard Compatible)
- No Pins: 26
- Dimensions: ~(33mm x 17.78mm x 3.2mm)
Resources
- NoLogo Tech Product Page
- NoLogo Pro Micro nRF52840 Schematic
- Nordic nRF52840 Product Specification v1.10
- Nordic Semiconductor nRF52840 Product Page
- Nordic Semiconductor nRF52840 Documentation Page
- nice!nano Original Product Page – Board looks to be a clone of this
- Informative Sparkfun nRF52840 Getting Started Guide
- Microne ME6217 Datasheet
- TOP POWER ASIC TP4054 Datasheet