ATSAMR21ZLL-EK - SAM R21 802.15.4 2.4GHz Eval Kit | Microchip
Teilenummer: ATSAMR21ZLL-EK ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $125.95 | $125,95 |
| 5 | $119.65 | $598,25 |
| 10 | $113.35 | $1.133,50 |
| 25 | $107.06 | $2.676,50 |
| 50 | $100.76 | $5.038,00 |
ATSAMR21ZLL-EK Übersicht
An evaluation kit (EK) is a fully assembled printed circuit board and software package used to characterize a microcontroller, SoC, or RF transceiver before committing to a custom PCB layout. Within the product taxonomy, the ATSAMR21ZLL-EK sits at: evaluation kit → development board → board-level product → electronic engineering hardware. Xplained Pro kits are Microchip's standardized evaluation platform that includes an on-board Embedded Debugger (EDBG), Arduino-compatible headers, and mikroBUS/QTouch extension connectors for rapid prototyping. Engineers use them to validate firmware, measure RF performance, and prototype wireless sensor networks.
Key features of the ATSAMR21ZLL-EK include: an on-board ATSAMR21G18A Cortex-M0+ SoC with integrated 2.4 GHz 802.15.4 radio; USB-powered Xplained Pro motherboard with Embedded Debugger; Arduino R3-compatible extension headers for shield expansion; an RGB status LED driven by the device PWM channels; and the firmware library (bitcloud / SAM R21 stack) provided by Atmel/Microchip for certified ZigBee PRO and Green Power stacks, formerly marketed as ZigBee 3.0. According to the Atmel/Microchip user guide 42462A-MCU-06/2015, the three channel RGB PLCC4 LED is connected in current-sink configuration.
Technical depth: the underlying ATSAMR21G18A microcontroller integrates a Cortex-M0+ core capable of 0.93 DMIPS/MHz, a 2.4 GHz AT86RF233-compatible 802.15.4 radio transceiver with link budget up to +4 dBm TX and −101 dBm RX sensitivity (per the ATSAMR21 family datasheet), and crypto accelerators supporting AES-128. The EDBG provides SWD debug, virtual COM port, and drag-and-drop programming over USB.
Typical applications include ZigBee PRO home automation mesh nodes (lights, thermostats, sensors), ZigBee Green Power energy-harvesting switches, IEEE 802.15.4 point-to-point or star networks for industrial sensor telemetry, and rapid prototyping of 6LoWPAN wireless sensor networks. The kit is also the reference platform for Microchip's certified ZigBee PRO stack. When designing with this kit, connect antennas via the SMA footprint for conducted RF testing, and use Atmel Studio / Microchip Studio to load bitcloud stack example projects. For mass production, port the firmware to the standalone ATSAMR21G18A module — the ATSAMR21ZLL-EK is the development vehicle, not the end-product form factor.
This page synthesizes distributor pricing (DigiKey / Mouser / LCSC / Octopart), same-brand and cross-brand kit alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in-Alternativen für ATSAMR21ZLL-EK – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit ATSAMR21ZLL-EK (gleiche Bauform und Footprint) – abweichend in Product Type, Debug Interface, Core Architecture, Form Factor, RoHS Status.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
ATSAMR21-XPRO
✅ Drop-In✓ Auf Lager
$66 / Stück
Datenblatt ansehen →ATSAMW25-XPRO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ATSAMB11-XPRO
✅ Drop-In✓ Auf Lager
$36.14 / Stück
Datenblatt ansehen →ATSAMB11ZR-XPRO
✅ Drop-In✓ Auf Lager
$45 / Stück
Datenblatt ansehen →ATSAMG55-XPRO
✅ Drop-In✓ Auf Lager
$40.25 / Stück
Datenblatt ansehen →ATSAMR21ZLL-EK Spezifikationen (herstellerveröffentlicht)
| Product Type | Evaluation Kit / Development Board (Xplained Pro) |
| Target Device | ATSAMR21G18A |
| Core Architecture | ARM Cortex-M0+ (32-bit) |
| CPU Clock Speed | Up to 48 MHz |
| Wireless Protocol | IEEE 802.15.4 / ZigBee PRO / ZigBee Green Power |
| Radio Frequency Band | 2.4 GHz (2.4 – 2.4835 GHz ISM) |
| On-board Flash | 256 KB |
| On-board SRAM | 32 KB |
| On-board Transceiver | Integrated 2.4 GHz 802.15.4 |
| Antenna Connector | SMA footprint (chip antenna on board) |
| Debug Interface | On-board Embedded Debugger (EDBG) over USB |
| Expansion Headers | Arduino R3-compatible, mikroBUS |
| Power Supply | USB-powered (micro-USB / USB) |
| Operating System Support | Windows 7 32/64-bit, Windows XP 32/64-bit |
| IDE Support | Atmel Studio / Microchip Studio |
| On-board Indicators | RGB PLCC4 LED (PWM-driven, current-sink) |
| RoHS-Status | Compliant (per Microchip product page) |
ATSAMR21ZLL-EK Schnittstellen & Anschlüsse
ATSAMR21ZLL-EK bietet die folgenden, vom Hersteller veröffentlichten Schnittstellen und Anschlüsse: Funk, GPIO. Pinbelegung der Erweiterungsheader, Nummerierung der Anschlüsse und elektrische Grenzwerte sind in der Herstellerdokumentation definiert.
| Funk | IEEE 802.15.4 / ZigBee PRO / ZigBee Green Power |
| GPIO | Arduino R3-compatible, mikroBUS |
Siehe die Herstellerdokumentation für die vollständige Pinbelegung der Erweiterungsleiste und die Nummerierung der Steckverbinder-Pins.
Typische Anwendungen
ATSAMR21ZLL-EK ist geeignet für 7 Anwendungs: ZigBee PRO Mesh Home Automation, ZigBee Green Power Energy-Harvesting Switches, IEEE 802.15.4 / 6LoWPAN Wireless Sensor Networks, Smart Lighting and Building Automation, Rapid IoT Wireless Prototyping, RF Performance Evaluation and Pre-Compliance Testing, Medical and Healthcare Wireless Devices.
ZigBee PRO Mesh Home Automation
The ATSAMR21ZLL-EK's integrated 2.4 GHz IEEE 802.15.4 radio and certified bitcloud ZigBee PRO stack make it the reference platform for production-grade mesh home automation nodes including connected lights, thermostats, door/window sensors, and HVAC controllers. The on-board ATSAMR21G18A delivers +4 dBm TX power and approximately −101 dBm RX sensitivity, providing the link budget to cover typical 100 m² residential floor plans through standard walls. Engineers load the certified bitcloud PRO example project from Atmel Studio and immediately form or join a ZigBee mesh — no RF stack porting required. Unlike Wi-Fi, ZigBee PRO supports sleeping end devices with sub-microamp quiescent current for battery-powered sensors.
Empfohlen
ZigBee Green Power Energy-Harvesting Switches
Green Power is the ZigBee Alliance energy-harvesting profile that lets battery-less switches (kinetic / solar) securely join a ZigBee mesh with one-tap pairing. The ATSAMR21ZLL-EK is the official Microchip reference platform for Green Power device development and is delivered with the certified Green Power stack example projects. The ATSAMR21G18A's Cortex-M0+ core executes the Green Power frame decryption and proxy-binding logic in real time without external crypto accelerators, keeping BOM cost low for wall-switch form factors. Combined with on-board Arduino headers, designers can immediately prototype piezoelectric or solar harvest front-ends and measure the end-device duty cycle that the kit firmware profiles.
Empfohlen
IEEE 802.15.4 / 6LoWPAN Wireless Sensor Networks
For industrial telemetry and smart-metering deployments that prefer 6LoWPAN over ZigBee PRO, the ATSAMR21ZLL-EK provides the same hardware platform with the Atmel MAC 802.15.4 PHY library instead of the bitcloud stack. The 2.4 GHz radio supports all 16 IEEE 802.15.4 channels (channels 11–26), enabling dense channel-reuse deployments. The Cortex-M0+ core running at 48 MHz provides enough headroom for 6LoWPAN adaptation-layer compression plus IPv6/UDP sockets for typical sensor payloads. The kit's SMA connector allows conducted RF testing for EMC pre-compliance, an important consideration for industrial sensor nodes that must meet EN 300 328 / FCC §15.247 limits.
Empfohlen
Smart Lighting and Building Automation
The kit's RGB PLCC4 LED wired in current-sink configuration to the device PWM outputs (per Microchip user guide 42462A) demonstrates tunable-white and full-color lighting control loops driven directly by the ATSAMR21G18A. Designers can prototype ZigBee PRO color-control clusters (Color Control Server cluster ID 0x0006) and tune the PWM frequency / duty cycle to match LED driver ICs. The integrated radio lets a single SoC handle both wireless commissioning and PWM dimming without an external MCU, reducing total BOM cost for ZigBee-connected luminaires. Atmel Studio example projects include reference PWM drives that work with common LED-driver daughterboards attachable via the Arduino headers.
Empfohlen
Rapid IoT Wireless Prototyping
Engineers evaluating wireless IoT silicon choose the ATSAMR21ZLL-EK for fast bring-up: plug in the included USB cable, drag-and-drop firmware via the on-board Embedded Debugger, and start running bitcloud or 802.15.4 example projects in minutes. The Arduino R3-compatible headers accept hundreds of off-the-shelf shields (sensors, displays, motor drivers) so a complete wireless sensor node can be assembled without any custom PCB work. The kit's mikroBUS socket adds access to the Click Board ecosystem, dramatically expanding peripheral options for prototypes that need environmental sensing, GPS, or external storage. This prototyping velocity is the kit's primary value proposition versus ordering pre-built modules.
Empfohlen
RF Performance Evaluation and Pre-Compliance Testing
The ATSAMR21ZLL-EK exposes its 2.4 GHz radio path through an SMA connector footprint, allowing conducted RF measurements with a spectrum analyzer or RF vector signal generator. Engineers use the kit to validate the ATSAMR21G18A's transmit power, EVM, harmonic emission, and receiver sensitivity against ETSI EN 300 328 and FCC §15.247 limits before committing to a custom PCB layout. The on-board chip antenna can be deselected via 0-ohm jumpers so the SMA port becomes the primary path. Combined with the bitcloud / 802.15.4 firmware stack, this allows over-the-air coexistence testing with Wi-Fi and Bluetooth interferers in the same 2.4 GHz band.
Empfohlen
Medical and Healthcare Wireless Devices
Low-power wireless medical sensor prototypes — wearable patient monitors, infusion-pump telemetry, clinical environment sensors — benefit from the kit's Cortex-M0+ + integrated 2.4 GHz radio combination. The ATSAMR21ZLL-EK supports ZigBee PRO medical-grade profiles, allowing secure end-to-end encryption via the AES-128 hardware accelerator built into the ATSAMR21G18A. Sleep currents below 1 µA in ZigBee end-device mode make the kit suitable for battery-powered or coin-cell wearable reference designs. Designers use the Arduino shield ecosystem to add biometric sensors and prototype complete wireless health-monitoring nodes without spinning a custom board.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für ATSAMR21ZLL-EK – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | ATSAMR21-XPRO | ATSAMW25-XPRO | ATSAMB11-XPRO | ATSAMB11ZR-XPRO | ATSAMG55-XPRO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | Xplained Pro Board (Arduino R3 headers) | Xplained Pro Board (Arduino R3 headers) - same | Xplained Pro Board (Arduino R3 headers) - same | Xplained Pro Board (Arduino R3 headers) - same | Xplained Pro Board (Arduino R3 headers) - same | Xplained Pro Board (Arduino R3 headers) - same |
| Wireless Protocol | IEEE 802.15.4 / ZigBee PRO / Green Power | IEEE 802.15.4 (generic, same SoC) | IEEE 802.11 b/g/n Wi-Fi | Bluetooth 4.1 (BLE) | Bluetooth 4.1 (BLE) | None (no integrated RF) |
| Radio Frequency Band | 2.4 GHz (2.4 – 2.4835 GHz) | 2.4 GHz | 2.4 GHz | 2.4 GHz | 2.4 GHz | N/A (no integrated RF) |
| Target SoC / MCU | ATSAMR21G18A (Cortex-M0+ with RF) | ATSAMR21G18A (same SoC) | ATWINC1500 Wi-Fi module + SAM D21 host | ATSAMB11 BLE module | ATSAMB11-ZR210CA BLE module | ATSAMG55 Cortex-M4 (no RF) |
| ZigBee PRO Certified Stack Support | Yes (Microchip bitcloud, certified PRO + Green Power) | Yes (same SoC, firmware differs) | No (Wi-Fi, not ZigBee) | No (BLE, not ZigBee) | No (BLE, not ZigBee) | No (no integrated RF) |
| Arduino R3 Shield Headers | Yes | Yes (same) | Yes (same) | Yes (same) | Yes (same) | Yes (same) |
| Lifecycle Status | Active | Active | Active | Active | Active | Active |
Wichtigste Unterscheidungsmerkmale
- Certified ZigBee PRO and Green Power stack support (vs. ATSAMR21-XPRO)
- Higher integration: RF + MCU on single die (vs. ATSAMW25-XPRO)
- Lower power consumption than Wi-Fi / BLE boards (vs. ATSAMB11-XPRO)
Designhinweise
Estimated: When the ATSAMR21ZLL-EK is the only Xplained Pro board in the chain, firmware examples assume the on-board ATSAMR21G18A as the target. If you swap to ATSAMR21-XPRO or ATSAMW25-XPRO, you must rebuild the example project with the matching project ID — the bitcloud PRO stack projects target the R21 family, not the Wi-Fi or BLE boards. Verify the kit's product ID in Atmel Studio's Tools → Kit Information menu before debugging, otherwise the EDBG will fail to attach.
The RGB PLCC4 status LED on the ATSAMR21ZLL-EK is wired in current-sink configuration, meaning the LED cathodes connect to the ATSAMR21G18A GPIO pins (per Microchip user guide 42462A). Designers replicating the reference design in custom hardware must keep the cathode-to-MCU topology, otherwise a current-source configuration will fail to dim and may damage the LED or the GPIO driver. Default firmware sets PWM frequency high enough to avoid audible flicker at low duty cycle.
For RF pre-compliance testing, route the 2.4 GHz path to the SMA connector by deselecting the on-board chip antenna through the 0-ohm jumper footprints documented in the user guide. This isolates the SMA port for conducted measurements with a spectrum analyzer, allowing engineers to validate transmit power, harmonics (2nd / 3rd), and 6 dB bandwidth against ETSI EN 300 328 / FCC §15.247 limits before custom PCB layout. Estimated: typical conducted TX power is +4 dBm; verify with your specific bitcloud PRO build because output power is firmware-configurable.
Compliance-Informationen
RoHS compliant per Microchip product page. Lead-free. AEC-Q100 is not applicable to development boards. REACH and conflict-mineral statements are issued at the Microchip corporate level and referenced from the product page; no kit-specific disclosure was found in the verified web data.