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docs: add quickstart guides for FoBE Mesh Solar Power and Tracker C1
Added detailed quickstart documentation for the FoBE Mesh Solar Power and FoBE Mesh Tracker C1, including descriptions, key features, hardware diagrams, and resources for users.
Signed-off-by: Chiho Sin <[email protected]>
FoBE Mesh Solar Power is a versatile solar expansion board designed to enhance the capabilities of QUILL series devices. It offers a convenient and efficient solution for solar power integration, battery management, and an adjustable low-power DC-DC boost converter.
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This expansion board features dual 18650 battery holders, a solar charging interface, an adjustable voltage boost output, and an IIC interface, making it ideal for a wide range of applications, including portable devices, remote sensors, and off-grid power systems.
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This expansion board features dual 18650 battery holders, a solar charging interface, an adjustable voltage boost output, and an I2C (IIC) interface, making it ideal for a wide range of applications, including portable devices, remote sensors, and off-grid power systems.
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## Key Features
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- Power Management
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- Dual 18650 battery holders for extended battery life
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- Solar charging interface (2pin PH2.0) for sustainable power
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- Adjustable voltage boost output interface (2pin PH2.0) for flexible power supply
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- Battery protection chip for safe operation
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- Solar charging interface (2‑pin PH2.0) for sustainable power
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- Adjustable voltage boost output interface (2‑pin PH2.0) for flexible power supply
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- Battery protection IC for safe operation
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- Expansion and Connectivity
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- Two rows of double 14-pin female sockets not only meet the operational requirements of the QUILL series, but also have additional free pins.
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-4pin SH1.0 IIC interface for easy integration with sensors and peripherals
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- Two rows of double 14‑pin female sockets meet the requirements of the QUILL series and also provide additional free pins.
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-4‑pin SH1.0 I2C (IIC) interface for easy integration with sensors and peripherals
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## Hardware diagram
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The following figure illustrates the FoBE Mesh Solar Power hardware diagram.
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The following figure shows the FoBE Mesh Solar Power hardware diagram.
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<br/>
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<divstyle={{ textAlign: 'center' }}>
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<imgsrc="/img/products/f2101-r1a.digram.png"alt="FoBE Mesh Solar Power Hardware Diagram"style={{ width: '80%', height: 'auto' }} />
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</div>
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<br/>
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## Mechanical dimensions
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FoBE Mesh Solar Power is a PCB with dimensions of 100mm \*42.8mm, designed to be compatible with QUILL series devices, featuring two rows of double 14-pin female headers.
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FoBE Mesh Solar Power is a PCB with dimensions of 100 mm × 42.8 mm, designed to be compatible with QUILL series devices, featuring two rows of double 14‑pin female headers.
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<br/>
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<divstyle={{ textAlign: 'center' }}>
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<imgsrc="/img/products/f2101-r1a.dimensions.png"alt="FoBE Mesh Solar Power Mechanical Dimensions"style={{ width: '80%', height: 'auto' }} />
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</div>
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<br/>
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## Power Output Configuration
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## Peripheral Power
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The external IIC power is provided by PERI-3V3, which is controlled by the Quill device via the D13 pin.
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External I2C (IIC) power is supplied by PERI-3V3 and is controlled by the Quill device via pin D13.
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## Onboard NTC
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In addition to the battery protection chip, there is an onboard NTC measurement circuit(3380K, composed of PERI-3V3 and a 10k resistor) connected to pin A5. This NTC can be measured and monitored by the Quill device using the corresponding pin.
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In addition to the battery protection IC, there is an onboard NTC measurement circuit (B = 3380 K; powered by PERI-3V3 with a 10 kΩ resistor) connected to pin A5. The Quill device can measure and monitor this NTC via the corresponding pin.
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## BOOST MODE Jumper
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The board also has a reserved solder jumper: BOOST MODE. If soldered resistor, the boost converter operates in PWM mode; otherwise, it operates in PFM mode.
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The board also has a reserved solder jumper: BOOST MODE. If a resistor is populated, the boost converter operates in PWM mode; otherwise, it operates in PFM mode.
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> In moderate to heavy load condition, the device works in pulse width modulation (PWM) mode. In light load condition, the device has two operation modes selected by the MODE pin. One is the pulse frequency modulation (PFM) mode to improve the efficiency and another one is forced PWM mode to avoid application problems caused by low switching frequency. The switching frequency in PWM mode is adjustable, ranging from 200 kHz to 2.2 MHz by an external resistor.
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> Under moderate to heavy load, the device works in pulse width modulation (PWM) mode. Under light load, the device supports two modes selected by the MODE pin: pulse frequency modulation (PFM) to improve efficiency, or forced PWM to avoid issues caused by low switching frequency. The switching frequency in PWM mode is adjustablefrom 200 kHz to 2.2 MHz via an external resistor.
FoBE Mesh Tracker C1 is a complete application board designed for outdoor LoRa communication. It integrates a nRF52840 MCU, GPS, buzzer, display screen, and LoRa transceiver, providing all the necessary features for an outdoor LoRa communication device.
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FoBE Mesh Tracker C1 is a fully integrated application board for outdoor LoRa communication. It integrates an nRF52840 MCU, GPS, buzzer, OLED display, and a LoRa transceiver, providing everything needed for an outdoor LoRa device.
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The board features a rotary encoder, two buttons for easy user interface operation, an onboard BLE antenna for convenient configuration, a 0.96-inch OLED screen, and two indicator LEDs. It also includes a USB-C connector, reserved SWDIO/SWCLK header holes on the side, an 8-pin header for external expansion with 6 GPIO pins, and two IPEX antenna connectors for LoRa and GPS antennas.
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The board features a rotary encoder, one user button, one reset button, an onboard BLE antenna for convenient configuration, two indicator LEDs, a USB-C connector, reserved SWDIO/SWCLK header pads, an 8-pin expansion header exposing 6 GPIOs, and two IPEX connectors for the LoRa and GPS antennas.
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## Key Features
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- User Interface
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- Rotary encoder for easy navigation
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-Two user buttons
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-One user button and one reset button
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- Two indicator LEDs
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- Onboard BLE antenna
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- Connectivity and Expansion
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- USB-C connector
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- Reserved SWDIO/SWCLK header holes
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- 8-pin header with 6 GPIO Pins for external expansion
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- 2-Pin MX1.25 battery input interface
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-6-Pin SH1.0 FPC external module interface x 2
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- Reserved SWDIO/SWCLK header pads
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- 8-pin header exposing 6 GPIO pins for external expansion
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- 2-pin MX1.25 battery input interface
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-Two 6-pin SH1.0 FPC connectors for external modules
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## Hardware diagram
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The following figure illustrates the FoBE IDEA Mesh Tracker C1 hardware diagram.
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The following figures show the FoBE Mesh Tracker C1 hardware diagrams.
- GPS power (GNSS-3V3) is controlled by MCU P0.26. GPS data backup power is not controlled.
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- Screen, buzzer, and external header power (PERI-3V3) are controlled by MCU P0.16.
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### USB-C Power
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The board can be powered via the USB-C connector (5 V).
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Battery charging current is limited to 800 mA.
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### Battery Power
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The board can be powered by a single-cell Li-ion/Li-Po battery connected to the 2-pin MX1.25 battery input interface. The battery voltage range is 3.7 V to 4.2 V.
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### Peripheral Power Control
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#### GNSS Module
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GPS power (GNSS-3V3) is controlled by MCU P0.26. Backup power for GNSS data is not switchable.
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#### Peripheral
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The OLED display, buzzer, and MFP (PERI-3V3) are controlled by MCU P0.16.
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## Status Indicators
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- Reset Button
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- User Button (connected to MCU P1.00)
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## Shielding Pads
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The MCU and LoRa IC have reserved shielding pads, allowing users to add shielding covers for improved signal performance.
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## Battery Management
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- The battery charging IC directly manages the battery connection.
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- The NTC header is directly connected to the charging IC.
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- Battery voltage is measured using a voltage divider circuit (1M and 1.5M resistors), and the measurement is read by MCU P0.05.
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- Battery voltage is measured using a voltage divider (1 MΩ and 1.5 MΩ resistors) and read by MCU P0.05.
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## Sub-GHz Radio (LoRa)
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The FoBE IDEA Mesh Tracker C1 board features an on-board sub-GHz radio module based on the Semtech SX1262. It supports LoRa and (G)FSK modulation and operates in the 433 MHz, 868 MHz, and 915 MHz frequency bands (depending on the model). An integrated 1.8V TCXO ensures excellent stability across temperature variations.
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The FoBE Mesh Tracker C1 board features an on-board sub-GHz radio module based on the Semtech SX1262. It supports LoRa and (G)FSK modulation and operates in the 433 MHz, 868 MHz, or 915 MHz bands (depending on the model). An integrated 1.8 V TCXO ensures excellent stability across temperature variations.
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Key specifications include a low active receive current of just 4.2 mA, a maximum transmit power of up to +22 dBm, and high sensitivity down to -148 dBm, providing excellent interference immunity.
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Key specifications include a receive current as low as 4.2 mA, a maximum transmit power of up to +22 dBm, and sensitivity down to -148 dBm, providing excellent interference immunity.
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The module connects to the nRF52840 SoC via SPI for long-range wireless communication:
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