Ryan Malloy
e3642cbc4e
Astro/Starlight documentation covering hardware specs, pinout, schematics, GNSS protocol, LoRa frequencies, and getting started guides. Includes extracted datasheet images and Docker deployment.
48 lines
1.8 KiB
Markdown
48 lines
1.8 KiB
Markdown
# Wireless Tracker Frequently Asked Questions
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## Q: How do I access boot mode manually if I'm unable to upload code?
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**A:** The Wireless Tracker uses ESP32S3's internal USB, which may fail to enter bootloader in low-power mode or when certain pins are occupied. To manually enter boot mode:
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- **Device not connected:** Press the `USER` button before plugging into a USB port
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- **Device already connected:** Hold `USER` button → Press `RESET` → Release `RESET` → Release `USER` button
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Timing requirement: TRST ≥ 10 ms
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## Q: Why isn't Meshtastic firmware working properly on V1.1 hardware?
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**A:** The V1.1 hardware changed the GNSS chip power supply control pin to GPIO3, causing compatibility issues with official Meshtastic firmware.
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**Solution:** Download the temporary firmware package from Heltec's resources and flash using the CLI command: `device-install.bat -f firmware.factory.bin`
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*Note: This was resolved in Meshtastic 2.2.17 Beta, which auto-detects device version.*
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## Q: Why is my screen not displaying?
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**A:** Two common causes:
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1. When running LoRa/LoRaWAN sample code: Check the serial port and press RST. Verify device activation via the licensing documentation.
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2. When running Meshtastic: Confirm you've downloaded the correct firmware version for your device.
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## Q: What are the key GPIO differences between V1.0 and V1.1?
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**A:** The main change in V1.1:
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- **GPIO3** now controls GNSS power (set HIGH to enable)
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- Added dedicated LDO for UC6580 GNSS module
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- Improved power isolation between LoRa and GNSS subsystems
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## Q: How do I check which hardware version I have?
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**A:** Look for the version marking on the PCB near the USB connector, or check:
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- V1.0: GNSS power tied to main rail
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- V1.1: GNSS has independent power control via GPIO3
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