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Zest_Core_MTXDOT

Overview

The Zest_Core_MTXDOT is an electronics development board for 6TRON opensource platform built around the Multitech MTXDOT-EU1-A00 LoRaWAN module.

The MTXDOT-EU1-A00 is an ARM Cortex-M3 core coupled with a long range LoRa transceiver. The frequency of the core can reach 32 MHz with 256 kB flash memory and 32 kB SRAM. It is capable of sending with up to 14 dBm and receiving with a sensitivity of -137dBm. The board offers a frequency range from 860 MHz to 870 MHz.

The board is equipped with an internal ceramic antenna and has an U.FL connector to plug an external antenna.

The Zest_Core_MTXDOT board features a high density 80-pins interface connector integrating configurable standard communication interfaces (at least 1 SPI, 1 I2C, 2 Analog, 1 UART, 1 PWM, 5 DIO). See 80-pin 6TRON header.

Zest_Core_MTXDOT

Specifications

MTXDOT-EU1-A00 features

  • Ultra-low power STM32L151CCU6 core
    • ARM 32-bit Cortex-M3 CPU
    • 32 MHz max CPU frequency
    • 33.3 DMIPS instructions
    • 256 kB flash memory
    • 8 kB EEPROM
    • 32 kB RAM
  • LoRa RF transceiver
    • Frequency: 860 MHz to 870 MHz
    • Power output: 14 dBm
    • Receive sensitivity: -137 dBm
FeatureDetails
User Interfaces1 user LED 1 power LED 1 user push button 1 reset button
ConnectivityMicro-USB for UART (through FTDI) Micro-USB device JTAG interface (debug and programming) 80-pin 6TRON headers U.FL connector Ceramic Antenna
Board size80mm x 39mm
Power SupplyMicro-USB JTAG External (VJack) 3-12V
CategoryZest_Core

Block Diagram

The graphics below gives an overview of the board features and connections.

Zest_Core_MTXDOT

80-pin 6TRON header

This table shows how the pinout on Zest_Core_MTXDOT corresponds to the pinout on the 6TRON BUS connector (the latter shown in the two middle columns).

Description6TRON functionPin numberPin number6TRON functionDescription
External Power SupplyVJACK12VJACKExternal Power Supply
External Power SupplyVJACK34VJACKExternal Power Supply
-VHV56VHV-
-VHV78VHV-
-DIO8910VIN_ENDisable 6TRON stack power supply from Core
-DIO71112DIO9-
-DIO61314DIO10-
Mother or daughter detectMD1516DIO11-
I/ODIO51718DIO12-
GroundGND1920GNDGround
GroundGND2122GNDGround
6TRON Stack Power SupplyVIN2324VIN6TRON Stack Power Supply
6TRON Stack Power SupplyVIN2526VIN6TRON Stack Power Supply
Enable 6TRON stack power supply from daughterVB_EN2728DIO13-
Power Zest output signalVB_OUT2930DIO14-
Analog OutputDAC13132DIO15-
-ADC43334DIO16-
-ADC33536DIO17-
-ADC23738DIO18-
Analog InputADC13940GNDGround
Global ResetEXT_NRST4142GNDGround
I/ODIO44344VREFReference Voltage
I/ODIO34546DIO19-
I/ODIO24748DIO20-
I/ODIO14950DIO21-
System wake-upWKUP5152DIO22-
-ICAPT5354DIO23-
-PWM35556DIO24-
-PWM25758DIO25-
PWM OutputPWM15960DIO26-
SPI Chip selectSPI1_SS6162DIO27-
SPI ClockSPI1_SCK6364DIO28-
SPI MISOSPI1_MISO6566DIO29-
SPI MOSISPI1_MOSI6768DIO30-
UART core to ZestUART1_TX6970DIO31-
UART Zest to coreUART1_RX7172DIO32-
I2C DataI2C1_SDA7374DIO33-
I2C ClockI2C1_SCL7576DIO34-
-CAN1_TX7778DIO35-
-CAN1_RX7980DIO36-

Software Support

The Zest_Core_MTXDOT board provides a demo example developed using Mbed OS. The board can run on Zest Core development boards.

Environmental impact

The Eco score of the Zest_MTXDOT is expressed in points representing the environmental impact of an average European per year.

Zest_Core_MTXDOT

Zest_Core_MTXDOT

Eco-score details

BOM

Componentdataunit
Passive electronic component0,68g
Active electronic component0,11g
LED0,0116g
Other component0,00g
Connectors Switchs3,33g
Logique type integrated circuit3,86g
Memory type integrated circuit0,00g
PCB3120mm²

Ressources