SIMCOM SIM7000E + 8PYA00 EVB 筆記

Posted by BrainChildRalph on December 6, 2018, modified on December 7, 2018

摘要

開發板 8PYA00-SIMCOM-EVB


文件:

8PYA00 - SIMCOM_EVB KIT_User Guide_V1.01.pdf
SIM7000 文件

MCU 資訊:

目前網上資訊似乎為：STMicroelectronics（意法半導體）- STM32L0

USB to UART Bridge - CP2105

CP2105 Driver
下載頁面畫面

Baud Rate

9600bps-8-1-N.

上電

  1. Connect the SIMCOM-TE to the 2x60pins connector on EVB, plug in 5V DC adapter, switch S201 to “ON”state; keep S401 to “ON” position.
  2. Press the POWER_ON button for more than 1.5 second and then release, SIMCOM module power on.After the module is on, the LED light D402 will be bright ,and the LED light D401will blink at a certain frequency. Through the state of LED, you can judge registering status of the module. For detailed description, please refer to SIMCOM HD document.


技術文檔


技術文檔下載

AT Commands

TCPIP

GNSS


AT Commands 簡介


Conventions and Abbreviations(慣例與縮寫)

GSM:

  • ME (Mobile Equipment)
  • MS (Mobile Station)
  • TA (Terminal Adapter)
  • DCE (Data Communication Equipment) or facsimile DCE (FAX modem, FAX board)

Controlling Device:

  • TE (Terminal Equipment)
  • DTE (Data Terminal Equipment) or plainly “the application” which is running on an embedded system


SIM7000 Hardware Design

SIM7000 Power-on Sequence

SIM7000 PIN Overview

Botletics Shield Design

UART Level Shift
Ardunio software serial is 5V, so it needs level shift, ex: tx0104 to level down to 1.8v.
UART Level Shift
UART Level Shift
Colleagues’ suggestion: use two MOSFET to do left shifting.

Arduino Testing with SIM7000E EVB

Signal Detection by Arduino Serial Plotter
SIM7000E GPIO 4 Testing
Test Point Area D PIN 1 is referred to SIM7000E GPIO4.

AT command to trigger GPIO High/Low.

# Pull High
AT+SGPIO=0,4,1,1 
# Pull Low
AT+SGPIO=0,4,1,0

DFRobot NB-IOT SIM7000 Shield

Model Name:

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