IES IoT – Wireless Development Module (WDM)

MCU Specifications:

• CPU: Xtensa dual-core 32-bit LX6 microprocessor, up to 240MHz

• ROM: 448KB for booting and core functions

• SRAM: 520KB for booting and instructions

• SRAM: 16 KB in RTC

• SPI Flash: 4MB

• Ultra-Low Power (ULP) Co-processor

• Crystal oscillator: 40 MHz

• 8x Hybrid Digital IO with Special Functions

• Special Functions: 1x I2C, 1x SPI, 1x UART

• 4x Hybrid Analog & Digital IO: 4 No’s

• 2x Hybrid Analog & Digital IN: 2 No’s

• Analog Resolution: 8,10,12-bit configurable

• Pulse Width Modulation (PWM)

• Onboard Temperature Sensing (typ., -40°C to 90°C with Accuracy 0.3 °C)

• Onboard Humidity Sensing (typ., 0%RH to 100%RH with Accuracy  2%RH)

• Onboard LED: 1xRED

• Baud rate configurable

• 802.11 b/g/n Wi-Fi

• Bluetooth Classic and Bluetooth Low Energy (BLE) in the 2.4GHz band

• General ISM < 1GHz LoRa™ Transceiver 868MHz Surface Mount

• Onboard Antenna for Wi-fi & Bluetooth

• Open source software

LoRa Specification:

• LoRa Chip: RF96

• Data Rate: 300kbps

• Power Output: 20dBm

• Sensitivity: -148dBm

• Current Transmitting: 120mA

• Operating Temperature: -20°C ~ 70°C

• RF Family/Standard: General ISM < 1GHz

• Protocol: LoRa™

• Modulation: FSK, GFSK, GMSK, MSK, OOK

• Frequency: 865-867 MHz

• Antenna Type – External Antenna via SMA / I-Pex connector

• Supply Voltage: 1.8V ~ 3.7V

• Receiving Current: 12.1mA

• Transmitting Current: 120mA

• Operating Temperature: -20°C ~ 70°C

Wi-Fi:

• 802.11b/g/n

• Bit rate: 802.11n up to 150 Mbps

• A-MPDU and A-MSDU aggregation

• 0.4 µs guard interval support

• Center frequency range of operating channel: 2412 ~ 2484 MHz

Bluetooth Specification:

• Bluetooth v4.2 BR/EDR and BLE specification

• Class-1, class-2 and class-3 transmitter

• Adaptive Frequency Hopping (AFH)

Common DC Characteristics:

• Supply Voltage: 5 V

• Operating Voltage: 3.0 – 3.6 V

• Minimum current delivered by power supply: 500 mA

• Battery Voltage: 3.7 V Li-Poly

• operating temperature range: – 40 °C ~ 85 °C

• Wake up from GPIO interrupt, timer, ADC measurements

Applications:

• Home Automation

• Smart Building

• Industrial Automation

• Smart Agriculture