HC-12 - Wireless Transceiver Module - SI4438 Radio Chip Based - Approx 1 Km Range in Open area - TTL Serial Interface

Based on SI4463 EZRadioPro family chip by SiLabs. This module offers a wireless data transmission and reception range of approximately 1 Km in open air. It's a low power radio chip which is ultra easy to use. This module has an onboard STM8S003F3P6 MCU which is communicating with the SI4463 so that the user can communicate with the module using a simple TTL 2 wire serial interface (RX, TX, GND).

SI4463 Technical Datasheet [silabs.com]

Module User Manual by Seeed Studio

Features 

• IEEE 802.15.4g compliant
• Frequency range = 119–1050 MHz
• Receive sensitivity = –126 dBm 
• Serial TTL (RX, TX, GND) interface
• Modulation (G)FSK, 4(G)FSK, (G)MSK, OOK
• Max output power +20 dBm
• Low active power consumption 10/13 mA RX, 18 mA TX at +10 dBm
• Ultra low current powerdown modes 30 nA shutdown, 50 nA standby
• Data rate = 100 bps to 1 Mbps
• Fast wake and hop times
• Highly configurable packet handler
• TX and RX 64 byte FIFOs
• Auto frequency control (AFC)
• Automatic gain control (AGC)
• Low BOM
• Low battery detector
• FCC Part 90 Mask D, FCC part 15.247, 15,231, 15,249, ARIB T-108, T-96, T-67, RCR STD-30, China regulatory 
• ETSI Class-I Operation with SAW

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