AZ-GTI

1 Overview

• 信达 AZ-GTI 官网，自重 1.3kg，载重 5kg，电源 7-14V, 0.75A

• 信达AZ-gti经纬仪开光
• 信达AZGTI赤道仪模式测试兼开光
• az-gti更新az-eq固件和通过计算机控制教程
• ASIAIR与信达AZ-GTI经纬仪搭配使用指南

2 Firmware

http://www.skywatcher.com/download/software/motor-control-firmware/

3 Hack

• 主控： STM32F51R8T6 STM32
  • Power Supply: 2 - 3.6V (4V max)
  • PIN1/13/32/64 --- 3.3V
  • PIN12/31/63 --- GND
  • PIN46 --- SWDIO
  • PIN49 --- SWCLK

• • PIN60 (BOOT) --- R11 (10K) --- J4 --- 3.3V

• WiFi: ESP8266 官方模块（串口透传）
  • EN --- PIN54
  • IO15 (need pull-down) --- PIN53
  • IO2 (need pull-up) --- PIN52
  • IO0 (need pull-up) --- PIN51
  • RXD --- PIN16 (USART2_TX)
  • TXD --- PIN17 (USART2_RX)
  • RST --- C2 ---GND

4 ESP8266

Note that the CH_PD signal is connected to the ID_SD signal. This must be mapped as a GPIO (GPIO0) and switched to an output and driven low then switched to an input again before the driver is loaded in order to reset the module. This will be added in the near future in the driver.

https://github.com/al177/esp8089

https://hackaday.io/project/8678/instructions?page=1