研究筆記-LoPy

緣起

    聽說有個整合了 Wifi, Bluetooth, LoRa 的好東西，所以借來玩玩

Step by Step

• Quick Start  - LED color checked
• GPIO check
• Pymakr connected
• Telnet connected (micro/python)
• Boot with your code
• Bluetooth ADV check OK

GPIO Checked

# sample code in the document seems have syntax error, following is good.

import machine

led=machine.Pin("GPIO12",machine.Pin.OUT)

led(1)

Boot with your code

Replace main.py in flash/

• use ftp 192.168.4.1 to upload. 
• or add main.py to your project and sync project in PyMakr

network module don’t have Bluetooth. Maybe need upgrade

Upgrade firmware

升級時，電源另外給 5v, 資料還是用 3.3v

FTDI TxD-P0(Rx0), FTDI RxD-P1(Tx0), FTDI GND-GND.

0.9.0.b network module don’t have Bluetooth. 1.1.0.b1 have.

from 0.9.0.b to 1.1.0.b1

>>> import os

>>> print(os.uname().release)

1.1.0.b1

Check Bluetooth Adv

• telnet and UART console hard to use code copy&paste to run python script.
• use PyMakr, run script will be better

• from network import Bluetooth
• import binascii
• bluetooth = Bluetooth()
• 
  
• bluetooth.start_scan(5)
• while True:
•     adv = bluetooth.get_adv()
•     if adv:
•         # try to the the complete name
•         print(bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL))
• 
  
•         # try to get the manufacturer data (Apple’s iBeacon data is sent here)
•         #print(binascii.hexlify(bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_MANUFACTURER_DATA))
• 
  
• 
  

Output: CC2650 SensorTa.

Normal console output

• ets Jun  8 2016 00:22:57
• 
  
• rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
• configsip: 0, SPIWP:0x00
• clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
• mode:QIO, clock div:2
• load:0x3fff9010,len:8
• load:0x3fff9018,len:312
• load:0x40078000,len:2352
• load:0x4009f000,len:1196
• entry 0x4009f2d8
• frc2_timer_task_hdl:3ffd2634, prio:22, stack:2048
• tcpip_task_hdlxxx : 3ffd7154, prio:18,stack:2048
• pp_task_hdl : 3ffdb3c4, prio:23, stack:8192
• mode : softAP(24:0a:c4:00:b4:ff)
• dhcp server start:(ip: 192.168.4.1, mask: 255.255.255.0, gw: 192.168.4.1)
• dhcp server start:(ip: 192.168.4.1, mask: 255.255.255.0, gw: 192.168.4.1)
• 
  

Try PyMate

• By follow the setup procedure and in PyMate App (iOS), the setup devices always can’t connected. The setup procedure run smoothly. But not working.

• The /flash directory only have main.py, boot.py , Can’t find any additional library and python file which I think there should be have some support files.

• Pymate: Understanding Virtual and Terminal Pins
• 
  

參考資料

• pycom
  • Forum
  • MicroPython libraries
  • LoPy
    • Datasheet
    • Expansion Board 2.0
    • LoPy PinOut
  • Document
  • Quickstart guide
  • Expansion Board PinOut
  • Expansion Board User Manual