Nordic nRF51822
E203933
The Nordic nRF51822 is a low-power Bluetooth Low Energy (BLE) and 2.4 GHz SoC featuring an ARM Cortex-M0 processor, widely used in embedded and IoT applications.
All labels observed (7)
| Label | Occurrences |
|---|---|
| nRF51 Series | 2 |
| Nordic Semiconductor nRF boards | 1 |
| Nordic nRF microcontrollers | 1 |
| Nordic nRF series | 1 |
| Nordic nRF51822 canonical | 1 |
| Nordic nRF52832 | 1 |
| nRF51 Series SoCs | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1832637 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nordic nRF51822 Context triple: [Calliope mini, hasCPU, Nordic nRF51822]
-
A.
Calliope mini
Calliope mini is a small educational microcontroller board designed to teach children and beginners programming and electronics through interactive projects.
-
B.
ESP32 microcontrollers
ESP32 microcontrollers are low-cost, low-power Wi-Fi and Bluetooth-enabled system-on-chips from Espressif, widely used for IoT, embedded, and hobbyist electronics projects.
-
C.
Zigbee
Zigbee is a low-power, wireless mesh networking standard commonly used for home automation and Internet of Things (IoT) devices.
-
D.
Qualcomm Snapdragon Wear
Qualcomm Snapdragon Wear is a family of low-power system-on-chip platforms designed by Qualcomm specifically for wearable devices such as smartwatches and fitness trackers.
-
E.
ON Semiconductor
ON Semiconductor is a leading global supplier of power and analog semiconductor solutions used in automotive, industrial, and other high-performance electronic applications.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Nordic nRF51822 Target entity description: The Nordic nRF51822 is a low-power Bluetooth Low Energy (BLE) and 2.4 GHz SoC featuring an ARM Cortex-M0 processor, widely used in embedded and IoT applications.
-
A.
Calliope mini
Calliope mini is a small educational microcontroller board designed to teach children and beginners programming and electronics through interactive projects.
-
B.
ESP32 microcontrollers
ESP32 microcontrollers are low-cost, low-power Wi-Fi and Bluetooth-enabled system-on-chips from Espressif, widely used for IoT, embedded, and hobbyist electronics projects.
-
C.
Zigbee
Zigbee is a low-power, wireless mesh networking standard commonly used for home automation and Internet of Things (IoT) devices.
-
D.
Qualcomm Snapdragon Wear
Qualcomm Snapdragon Wear is a family of low-power system-on-chip platforms designed by Qualcomm specifically for wearable devices such as smartwatches and fitness trackers.
-
E.
ON Semiconductor
ON Semiconductor is a leading global supplier of power and analog semiconductor solutions used in automotive, industrial, and other high-performance electronic applications.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Bluetooth Low Energy system-on-chip
ⓘ
integrated circuit ⓘ microcontroller unit ⓘ |
| architecture |
ARMv6-M
ⓘ
linked to:
ARMv6 architecture family
|
| designedFor | low-power wireless applications ⓘ |
| hasClockSource |
external crystal oscillator
ⓘ
internal RC oscillator ⓘ |
| hasDebugInterface | SWD ⓘ |
| hasFeature |
hardware AES encryption
ⓘ
integrated 32-bit ARM MCU ⓘ low-power modes ⓘ on-chip DC-DC converter (in some revisions) ⓘ programmable peripheral interconnect (PPI) ⓘ |
| hasFlashMemory | up to 256 kB ⓘ |
| hasGPIOCount | up to 31 GPIOs ⓘ |
| hasMaxClockFrequency | 16 MHz ⓘ |
| hasOperatingTemperatureRange | -40 °C to +85 °C ⓘ |
| hasPackageOption |
QFN
ⓘ
WLCSP ⓘ |
| hasPeripheral |
ADC
ⓘ
GPIO ⓘ I2C ⓘ SPI ⓘ UART ⓘ |
| hasProcessorCore |
ARM Cortex-M0
ⓘ
linked to:
ARM Cortex-M series
|
| hasRadio | 2.4 GHz transceiver ⓘ |
| hasRadioOutputPowerRange | approximately -20 dBm to +4 dBm ⓘ |
| hasRAM | up to 32 kB ⓘ |
| introducedBy | Nordic Semiconductor in early 2010s ⓘ |
| manufacturer | Nordic Semiconductor ⓘ |
| partOfFamily |
nRF51 Series
ⓘ
linked to:
Nordic nRF51822
|
| predecessorOf |
Nordic nRF52832
ⓘ
linked to:
Nordic nRF51822
|
| supportsDevelopmentEnvironment |
GCC ARM Embedded
ⓘ
IAR Embedded Workbench ⓘ Keil MDK ⓘ |
| supportsOTA | over-the-air firmware update (DFU) ⓘ |
| supportsProtocol |
Bluetooth 4.0 Low Energy
ⓘ
linked to:
Bluetooth Core Specification
Bluetooth 4.1 Low Energy ⓘ proprietary 2.4 GHz protocols ⓘ |
| supportsSDK | nRF5 SDK ⓘ |
| supportsWirelessBand | 2.4 GHz ISM band ⓘ |
| supportsWirelessStandard |
Bluetooth Low Energy
ⓘ
linked to:
Bluetooth Core Specification
|
| typicalSupplyVoltageRange | 1.8 V to 3.6 V ⓘ |
| usedIn |
Internet of Things devices
ⓘ
beacons ⓘ sensor nodes ⓘ wearable devices ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Nordic nRF51822 Description of subject: The Nordic nRF51822 is a low-power Bluetooth Low Energy (BLE) and 2.4 GHz SoC featuring an ARM Cortex-M0 processor, widely used in embedded and IoT applications.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Nordic nRF51822
linked to: Nordic nRF51822
linked to: Nordic nRF51822
linked to: Nordic nRF51822
linked to: Nordic nRF51822
linked to: Nordic nRF51822