Description M5Stack Unit ZigBee is a CC2630F128 Zigbee module for self-organizing 2.4GHz Zigbee communication in low-power IoT deployments. The module integrates the Zigbee protocol stack and exposes an open UART serial interface, so a host controller can exchange transparent serial data without building the radio layer from scratch. As a Zigbee mesh module, it works with the included external SMA antenna to provide stable single-node communication up to 1 km in open areas. Mesh routing can extend coverage across a wider installation, support hundreds of nodes, and help home automation or building automation systems maintain reliable distributed links. For sensing and control nodes, M5Stack Unit ZigBee combines UART transparent transmission, broadcast, point-to-point communication, low operating current, and 5uA sleep mode. The CC2630F128 Zigbee module is suitable when a compact Zigbee mesh module needs long range, low power consumption, and straightforward serial integration. Features M5Stack Unit ZigBee with CC2630F128 dual ARM core 32-bit communication solution. CC2630F128 Zigbee module with integrated Zigbee protocol stack. Zigbee mesh module support for dynamic routing maintenance and 200-level routing depth. UART serial communication at 38400bps 8N1 by default. UART transparent transmission, broadcast, and point-to-point communication modes. 250Kbps transmission speed over the 2.4GHz operating frequency range. Single-node communication distance up to 1 km in open areas. Low power design with 25mA module operating current and 5uA sleep mode. Specifications Communication Chip CC2630F128, ARM Cortex-M3 32-bit Communication Method UART 38400bps 8N1 default setting Communication Range Up to 1 km in open areas Operating Frequency 2.4GHz, 2405MHz-2480MHz, 5MHz steps Transmission Speed 250Kbps Routing Depth Supports 200-level routing depth Power Consumption 25mA operating current, 5uA sleep mode Net Weight 24g Gross Weight 50g Product Size 71.5 x 24 x 8mm Package Size 136 x 92 x 10mm Applications Smart home automation networks using M5Stack Unit ZigBee. IoT data collection nodes that need a CC2630F128 Zigbee module with low power consumption. Building automation systems that benefit from a Zigbee mesh module with long-range routing. Distributed sensing and control projects using UART transparent transmission. Product List 1 x Unit ZigBee 1 x SMA Antenna 1 x HY2.0-4P Grove Cable (20cm) Other Content PORT.C UART pin mapping Black GND Red 5V Yellow UART_RX White UART_TX Use the M5Stack Unit ZigBee through PORT.C UART when a host needs transparent serial communication. The CC2630F128 Zigbee module can be configured for transparent transmission, broadcast, and point-to-point modes, while the Zigbee mesh module architecture supports deeper routing in larger deployments. Resources ZigBee Unit product document CC2630 datasheet ZigBee module user manual ZigBee PC Tool user guide ZigBee P2P test example ZigBee RSSI test example UIFlow2 ZigBee Unit API reference ZigBee Unit schematic image ZigBee Unit PDF document FAQ What is this module used for? It is used to add 2.4GHz Zigbee networking to smart home, IoT data collection, building automation, and distributed control projects. Which communication chip does it use? The module uses CC2630F128, an ARM Cortex-M3 32-bit Zigbee communication chip. What are the default UART settings? The listed default serial setting is UART 38400bps 8N1. How far can one node communicate? With the external antenna, one node can communicate up to 1 km in an open area. What comes in the package? The package includes 1 x Unit ZigBee, 1 x SMA Antenna, and 1 x HY2.0-4P Grove Cable (20cm).
