mirror of https://github.com/OpenIPC/wiki.git
Revised Thinker wiki page. Added compact and (hopefully) more user friendly descriptions, notes and drawings
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Thinker Board dimensions
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---
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title: "OpenIPC Thinker Air Unit"
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description: "OpenIPC Thinker installation and technical notes"
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---
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# OpenIPC AIO "Thinker" v1.0
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Heat Sink dimensions
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The OpenIPC Thinker is a compact and lightweight camera and video transmission unit, which integrates seamlessly with various RC vehicles.
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Two variants of the unit are available:
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- Base Edition ([Store Link](https://store.openipc.org/OpenIPC-Thinker-v1-0-Base-with-SD-p711054393)) - Features an SD card slot, requires an external WiFi module
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- Tiny Edition ([Store Link](https://store.openipc.org/OpenIPC-Thinker-v1-0-Tiny-with-WiFi-p633445803)) - Features a low power integrated WiFi module[^1], does not have an SD card slot
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[^1]: RTL8731BU, typical peak TX power is 50mW @ 5G, 125mW @ 2.4G
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Power supply 2S-6S
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## Technical Specifications
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Top view
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### Features
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- SSC338Q SoC
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- Power Supply: 2–6S
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- Integrated 3A BEC
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- Analog MEMS Microphone
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- Connectivity:
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- 3x UART ports
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- 1x MIPI camera interface
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- 1x USB with configurable 5V or 3.3V power output for ext. WiFi module
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- 1x Ethernet
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- 1x DC power Input
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Bottom View
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### Physical Characteristics
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- **Board Size:** 25x25mm
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- **Weight** (main unit and connected camera module only):
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- Without heat sink: ~8.8g
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- With heat sink: ~13.4g
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- **Mounting Holes:**
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- **PCB**: 20x20mm
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- **With heat sink installed**: 25.5x25.5mm
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- **Cooling:** Optional aluminium heat sink with passive cooling
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### Camera Options
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Tiny WIFI Version
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#### IMX335 Module ([Store Link](https://store.openipc.org/OpenIPC-IMX335-v2-module-without-cable-p721231276))
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- 14x14mm camera module in aluminium housing
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- Lens: 140° FOV, f/2.8
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- IMX335 sensor, integrated 6DOF IMU
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This is the default camera unit that comes with the Thinker AIO.
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Thinker Board dimensions
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#### IMX415 Module ([Store Link](https://store.openipc.org/OpenIPC-IMX415-v2-module-without-cable-p721152215))
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This module uses the same hardware as the IMX335 module but features an IMX415-based sensor.
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Heat Sink dimensions
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### Drawings (Dimensions, Connectivity)
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#### Connectivity & User-Accessiuble Components
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Power supply 2S-6S
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##### Installation Notes
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Top view
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- Power Connection
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- Connect a 2S-6S battery between Vcc and GND terminals
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- **Do not power** the unit **through USB Vd**, it is a power output
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- Network Connection
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- Use the supplied RJ45 cable and adapter to access the web interface, and other management and update utilities
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- The ETH link indicator LED shows connection status
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Bottom View
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- Camera Module
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- A camera modules is attached to the main unit out of the box.
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- Camera modules can be exchanged, compatible camera modules are listed in this document.
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- Optional Hardware
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- SD Card Slot (available on Base edition)
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- **On Base edition** units, an **external WiFi module must be connected** to designated pins
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- **On Tiny edition** units, the **USB** header **cannot be used** to connect external hardware, as the connection is used by the integrated WiFi module.
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- The UART available for communication with flight controller
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Various notes:
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- Do not remove the **thermal putty** from the heatsink, it **cannot be replaced with thermal paste**. If already removed, use low hardness thermal pads, or thermal putty as a replacement.
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Tiny WIFI Version
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##### Pin Descriptions
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| Pin Name | Dir | Description |
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|-------------|------|----------------------------------------------------------------|
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| **RJ45 / UART0 Header** | | |
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| UART0 RX | In | UART0 receive line (connect to RJ45 adapter or serial console) |
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| UART0 TX | Out | UART0 transmit line |
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| RJ45 TX+ | Out | Ethernet transmit (positive) |
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| RJ45 TX− | Out | Ethernet transmit (negative) |
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| RJ45 RX+ | In | Ethernet receive (positive) |
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| RJ45 RX− | In | Ethernet receive (negative) |
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| **USB Header** | | |
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| Vd | Out | Ext. WiFi Module Power output[^2][^3] |
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| DM | I/O | Ext. WiFi Module USB Data - |
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| DP | I/O | Ext. WiFi Module USB Data + |
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| GND | — | Ground |
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| **Power / UART1 Header** | | |
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| Vcc | In | Power input |
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| Vcc | In | Power input (duplicate pin, merge wires) |
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| RX | In | UART2 receive line (to FC) |
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| TX | Out | UART2 transmit line (to FC) |
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| GND | — | Ground |
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| GND | — | Ground (duplicate pin, merge wires) |
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[^2]: Output voltage can be programmed,
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[^3]: The use of Vd is optional, high-power WiFi modules can be powered externally. In such cases, connect DM, DP, and GND only.
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Build in RF setting VS output
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#### PCB Outline & Heat Sink Dimensions
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## Firmware Update
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To update the firmware, [download the latest release](https://github.com/OpenIPC/builder/releases/download/latest/ssc338q_fpv_openipc-thinker-aio-nor.tgz). This release includes drivers for RTL8812AU and RTL873XBU.
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**Note:**
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The RTL8731BU has limitations as a receiving unit (does not support LDPC), disable it on the ground station when using tunnel/MAVLink. It works well as a transmission unit for both 2.4 GHz and 5.8 GHz.[^4].
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[^4]: Ref. https://t.me/c/1809358416/127308/129654
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To disable LDPC, add the following to the `/etc/wifibroadcast.cfg` file on your ground station:
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```
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[tunnel]
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ldpc = 0
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```
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If you are using an RTL8812EU module, use [this firmware release](https://github.com/OpenIPC/builder/releases/download/latest/ssc338q_fpv_openipc-urllc-aio-nor.tgz).
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## Built-in RF output settings
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Firmware update link
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https://github.com/OpenIPC/builder/releases/download/latest/ssc338q_fpv_openipc-thinker-aio-nor.tgz
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Default include RTL8812AU and RTL873XBU driver.
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<b>Note: "... rtl8731bu has limitations as a recieving unit (does not support ldpc), which requires you to specifically disable it on groundstation if you use tunnel/mavlink. As a transmission unit it seems to be working good for both 2.4ghz and 5.8ghz ..."
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https://t.me/c/1809358416/127308/129654</b>
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On GS in /etc/wifibroadcast.cfg use:
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```
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[tunnel]
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ldpc = 0
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```
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For externel wifi RTL8812EU please update Firmware
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https://github.com/OpenIPC/builder/releases/download/latest/ssc338q_fpv_openipc-urllc-aio-nor.tgz
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Firmware update link
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https://github.com/OpenIPC/builder/releases/download/latest/ssc338q_fpv_openipc-thinker-aio-nor.tgz
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Default include RTL8812AU and RTL873XBU driver.
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<b>Note: "... rtl8731bu has limitations as a recieving unit (does not support ldpc), which requires you to specifically disable it on groundstation if you use tunnel/mavlink. As a transmission unit it seems to be working good for both 2.4ghz and 5.8ghz ..."
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https://t.me/c/1809358416/127308/129654</b>
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On GS in /etc/wifibroadcast.cfg use:
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```
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[tunnel]
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ldpc = 0
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```
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For externel wifi RTL8812EU please update Firmware
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https://github.com/OpenIPC/builder/releases/download/latest/ssc338q_fpv_openipc-urllc-aio-nor.tgz
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