1.original brand SIM20 module 2.multi-channel low power wireless communication module 3.SIM20 GSM GPRS module,434MHz 868MHz 2.4GHz wireless module
SIM20 is a high integrated half-duplex,multi-channel low power wireless communication module. It includes high speed MCU and perfect performance RF chip with high receiving sensitivity, programmable transmitting power and data rate. SIM20 supports the multi-channel choice, transparent date transfer without complex user setting and UART(CMOS/TTL),RS232,RS485,IIC/SPI,ADC interface.
The leading features of the module make it ideal for industrial applications such as automatic metering,wireless medical telemetry service,home automation,process and building control.
General Features - Standard – ETSI 300-220, FCC Part 15, - Support peer to peer transmission and broadcasting transmission - Optional 16bits RFID - Flexible software programmable setting option - Frequency bands support – 433MHz – 434.79MHz(SIM20-A) – 863MHz – 870MHz(SIM20-B) – 902MHz – 928MHz(SIM20-C) - Modulation schemes: 2GFSK - Frequency interval: 200KHz - transmission distance: 1000 Meters@1200bps - Transmit power: 20mW, 10 steps adjusting - Receive sensitivity: -115dBm@1200bps - Sleep current consumption: 5uA - Tx current consumption: 35mA@10dBm - Rx current consumption: 28mA - Input voltage of the module: 3.3V~5.5V(±50mV) - Physical Dimensions: 40mm×20mm×2.8mm - Operation temperature: -20°C to +70°C - Storage temperature: -40°C to +85°C - Humidity: 10%~90% - Air date rate: 1200 – 115200bps - Interface date rate: – 1200 – 115200bps – RS232/RS485 - Interface check mode: 8E1/8N1/801 - Interface buffer size: 512bytes