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-===== Introduction =====+**Special note:** 
 + 
 +__ <font inherit/inherit;;inherit;;#ffff00>The default factory built-in program is Blink-All-IO (all IO ports automatically flip over in 1S). If you need to enter Nice! Nano V2 Bootloader Please short-circuit RST to GND twice within 0.5S. Just press the RST button twice on the keyboard board within 0.5 seconds.</font>  __ 
 + 
 +**Introduction**
  
 SuperMini NRF52840 is a Pro Micro alternative development board that is compatible with Nice! Nano. Its pins are the same as ProMicro, which means it can be used with almost any ProMicro keyboard. The NRF5280 development board has a 3.7V lithium battery interface and a software switch that can cut off the power of the LED. When turned off, the standby power consumption can reach 1mA. SuperMini NRF52840 is a Pro Micro alternative development board that is compatible with Nice! Nano. Its pins are the same as ProMicro, which means it can be used with almost any ProMicro keyboard. The NRF5280 development board has a 3.7V lithium battery interface and a software switch that can cut off the power of the LED. When turned off, the standby power consumption can reach 1mA.
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 nRF52840 is a high-performance, low-power wireless SoC chip launched by Norwegian Nordic Semiconductor. It supports multiple wireless protocols, including Bluetooth 5, Thread, Zigbee, ANT, and 2.4GHz. The nRF52840 chip uses an ARM Cortex-M4F processor, clocked at 64MHz, with built-in 1MB of flash memory and 256KB of RAM. It also has a variety of peripherals, including ADC, PWM, SPI, I2C, UART, USB and GPIO, etc. In addition, nRF52840 also supports a variety of security functions, such as AES encryption, SHA-256 hashing and True Random Number Generator (TRNG). nRF52840 is a high-performance, low-power wireless SoC chip launched by Norwegian Nordic Semiconductor. It supports multiple wireless protocols, including Bluetooth 5, Thread, Zigbee, ANT, and 2.4GHz. The nRF52840 chip uses an ARM Cortex-M4F processor, clocked at 64MHz, with built-in 1MB of flash memory and 256KB of RAM. It also has a variety of peripherals, including ADC, PWM, SPI, I2C, UART, USB and GPIO, etc. In addition, nRF52840 also supports a variety of security functions, such as AES encryption, SHA-256 hashing and True Random Number Generator (TRNG).
  
-===== # Hardware description =====+**Hardware description**
  
-{{https://www.nologo.tech/assets/img/other/NRF52840/SuperMiniNRF52840.jpg?nolink&380x380|www.nologo.tech_assets_img_other_nrf52840_supermininrf52840.jpg}}+{{:developmentboard:s523f241efa674831ba4796424c4a8f3a6.jpg?400|s523f241efa674831ba4796424c4a8f3a6.jpg}}
  
-==== # Product parameters ====+Product Parameters Powerful wireless capabilities: Bluetooth 5.0, onboard antennaPowerful CPU: nRF52840 chip uses ARM Cortex-M4F processor, clocked at 64MHz, built-in 1MB flash memory and 256KB RAMBattery charging chip: supports lithium battery charging and dischargingPower consumption: standby power consumption can reach 1mA
  
-Powerful wireless capabilities: Bluetooth 5.0, onboard antennaPowerful CPU: nRF52840 chip uses ARM Cortex-M4F processor, clocked at 64MHz, built-in 1MB flash memory and 256KB RAMBattery charging chip: supports lithium battery charging and dischargingPower consumption: standby power consumption can reach 1mA+**Pin Diagram**
  
-==== # Pin diagram SuperMiniNRF52840 SuperMiniNRF52840 ====+{{:developmentboard:sedb0664b4eb04640a66e07424a1dc718d.jpg?400|sedb0664b4eb04640a66e07424a1dc718d.jpg}}
  
-==== # Dimensions ====+**Dimensions**
  
-{{https://www.nologo.tech/assets/img/other/NRF52840/SuperMiniNRF52840Size.jpg?nolink&|www.nologo.tech_assets_img_other_nrf52840_supermininrf52840size.jpg}}+{{:undefined:nrf52840_副本.jpg?400|nrf52840_副本.jpg}}
  
-===== # power supply =====+**Power Supply**
  
 SuperMini NRF52840 supports charging and discharging of 3.7V lithium battery. The charging rate is 100mA during charging, so a 2000mAh battery takes 20 hours to be fully charged. SuperMini NRF52840 supports charging and discharging of 3.7V lithium battery. The charging rate is 100mA during charging, so a 2000mAh battery takes 20 hours to be fully charged.
  
-==== # recharging current ====+Recharging Current warnWhen BOOST is connected, the charging current increases from 100ma to 300ma, and it can only be connected when the capacitor capacity is greater than 500mAh (to avoid explosion💥).
  
-warnWhen BOOST is connected, the charging current increases from 100ma to 300ma, and it can only be connected when the capacitor capacity is greater than 500mAh (to avoid explosion💥).+{{:developmentboard:sbbaa29971df14b9b80299c78420107fes_副本.jpg?400|sbbaa29971df14b9b80299c78420107fes_副本.jpg}}
  
-{{https://www.nologo.tech/assets/img/other/NRF52840/SuperMiniNRF52840BOOST.jpg?nolink&|www.nologo.tech_assets_img_other_nrf52840_supermininrf52840boost.jpg}} +**External Battery**
- +
-==== # External battery ====+
  
 If you need an external battery, you only need to connect the + stage of the battery to B+ and the negative stage to B-. The external lithium battery only supports 3.7V and the charging rate is 100mA (a 2000mAh battery takes 20 hours to be fully charged).NoticeWhen welding, please be careful not to short-circuit the positive and negative poles, which may burn the battery and equipment. If you need an external battery, you only need to connect the + stage of the battery to B+ and the negative stage to B-. The external lithium battery only supports 3.7V and the charging rate is 100mA (a 2000mAh battery takes 20 hours to be fully charged).NoticeWhen welding, please be careful not to short-circuit the positive and negative poles, which may burn the battery and equipment.
  
-{{https://www.nologo.tech/assets/img/other/NRF52840/SuperMiniNRF52840Battery.jpg?nolink&|www.nologo.tech_assets_img_other_nrf52840_supermininrf52840battery.jpg}}+{{:developmentboard:nrf.jpg?400|nrf.jpg}}
  
-==== #External VCC control ====+**External VCC control**
  
 hintWhen P0.13 is set to low, the power supply to the 3.3V, VCC pin will be turned off. This is useful for reducing components that use power when idle (e.g. RGB, LEDs). hintWhen P0.13 is set to low, the power supply to the 3.3V, VCC pin will be turned off. This is useful for reducing components that use power when idle (e.g. RGB, LEDs).
  
-===== # Bootloader =====+**Bootloader**
  
 If you want to enter Bootloder, please short RST to GND twice within 0.5S. Enter Bootloder, connect to the computer via USB, and a storage device called Nice! Nano will be displayed. At this point you can drag in the .uf2 file to burn the program. If you want to enter Bootloder, please short RST to GND twice within 0.5S. Enter Bootloder, connect to the computer via USB, and a storage device called Nice! Nano will be displayed. At this point you can drag in the .uf2 file to burn the program.
 +
 +
 +QS-NRF52840 V1.2-PCB FootPrint
 +
 +{{ :developmentboard:qs-nrf52840_v1.2-pcb_footprint.zip |}}
 +
 +**BUY**
 +
 +**Aliexpress：** [[https://www.aliexpress.us/item/1005006035267231.html?gatewayAdapt=glo2usa|https://www.aliexpress.us/item/1005006035267231.html?gatewayAdapt=glo2usa]]
 +
 +**TINDIE：**
  
  
  • developmentboard/nrf52840.1693642525.txt.gz
  • 最后更改: 2023/09/02 08:15
  • 由 admin12