OTA Firmware Updates Firmware Guide
Firmware Features
Over-the-air firmware update mechanisms for deployed IoT devices. Critical for security patches, feature updates, and regulatory compliance in the field.
Key Topics
Supported Hardware
nRF52840
Advanced multiprotocol SoC with 1MB Flash, 256KB RAM, and USB support. The go-to chip for Bluetooth 5.4, Thread, Zigbee, and 802.15.4 applications.
View platformnRF5340
Dual-core Bluetooth 5.4 SoC with dedicated application and network processors. 1MB Flash + 512KB RAM on the application core, with hardware security via ARM TrustZone.
View platformnRF9160
Cellular IoT SiP with integrated LTE-M/NB-IoT modem and GPS. Perfect for asset tracking, remote monitoring, and any application requiring wide-area connectivity.
View platformESP32
Dual-core Wi-Fi and Bluetooth combo chip with extensive peripheral support. One of the most popular IoT microcontrollers for prototyping and production.
View platformESP32-S3
AI-capable dual-core MCU with vector instructions for neural network acceleration, Wi-Fi, and BLE 5.0. Ideal for AIoT edge computing applications.
View platformSTM32F4
High-performance ARM Cortex-M4 series with DSP and FPU. Industry workhorse for motor control, industrial automation, and signal processing applications.
View platformSTM32H7
Highest-performance STM32 series with ARM Cortex-M7 running at 480 MHz. Ideal for graphics, AI inference, and complex signal processing at the edge.
View platformnRF52805
Ultra-compact, cost-optimized BLE 5.4 SoC with 192KB Flash and 24KB RAM. The smallest, most affordable chip in the nRF52 series for simple BLE applications.
View platformnRF52810
Cost-optimized BLE 5.4 SoC with 192KB Flash and 24KB RAM, featuring hardware SWI and NFC-A tag. Ideal for high-volume BLE peripherals and beacons.
View platformnRF52811
BLE 5.4 SoC with optional 802.15.4 and ANT support plus long-range mode (Coded PHY). Extends nRF52810 with Thread and extended-range BLE capability.
View platformnRF52820
BLE 5.4 and 802.15.4 SoC with USB 2.0 Full Speed and 256KB Flash. Bridges BLE/Thread wireless with USB at lower cost than the nRF52840.
View platformnRF52833
Full-featured BLE 5.4 + 802.15.4 SoC with 512KB Flash, 128KB RAM, USB, and NFC. Offers extended-range BLE (Coded PHY) and mid-range capability between nRF52832 and nRF52840.
View platformnRF54H20
High-performance multicore SoC with dual Cortex-M33 (application + radio) plus a RISC-V VPR core. 2MB Flash and 1MB RAM, designed for complex multiprotocol BLE + 802.15.4 applications.
View platformnRF54L05
Entry-level nRF54L series SoC with ARM Cortex-M33 and RISC-V co-processor. Ultra-low-power BLE 5.4 with 512KB Flash — the most affordable chip in the nRF54L family.
View platformnRF54L10
Mid-range nRF54L series SoC combining ARM Cortex-M33 with a RISC-V co-processor. 1MB Flash and 128KB RAM with BLE 5.4, targeting wearables and connected sensors.
View platformnRF54LM20
The flagship nRF54L series SoC built on a 22nm process, featuring a 128 MHz ARM Cortex-M33 + RISC-V co-processor with 2MB Flash and 512KB RAM — the largest memory in the nRF54L family. Supports Bluetooth LE, Matter, Thread, Zigbee, and 2.4 GHz proprietary protocols up to 4 Mbps. The nRF54LM20A variant adds 66 GPIOs and high-speed USB; the nRF54LM20B adds an integrated Axon NPU for hardware-accelerated Edge AI inference. Security includes TrustZone, CRACEN cryptographic engine with side-channel protection, and tamper detection.
View platformnRF9131
Ultra-compact LTE-M/NB-IoT SiP (System-in-Package) with DECT NR+ support and GNSS. The smallest form-factor nRF91 series chip for space-constrained cellular IoT designs.
View platformnRF9151
LTE-M/NB-IoT SiP with integrated GNSS, DECT NR+, and extended temperature support. An improved nRF9160 successor with lower power consumption and industrial-grade temperature range.
View platformnRF9280
DECT NR+ and LTE-M/NB-IoT SiP designed for the unlicensed 1.9 GHz DECT band. Enables high-speed, low-latency local-area wireless for industrial automation and smart factory applications.
View platformMore Firmware Features
Secure Boot & Security
Hardware-rooted security mechanisms ensuring only authenticated firmware runs on the device. Essential for protecting against unauthorized code execution and tampering.
Learn morePower Management & Optimization
Techniques and strategies for minimizing power consumption in battery-powered embedded devices, from sleep modes to radio duty cycling.
Learn moreFrequently Asked Questions
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