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3-Axis Sub-G LongRang Solar Power Asset Tracker



3-Axis Sub-G LongRang Solar Power Asset Tracker collects key information required for asset tracking such as acceleration and GPS location, and charges the battery using solar charging.
This is an example that provides quick testing of various service scenarios that require long-distance communication of 1Km or more.


Device can be purchased from the Naver Smart Store.

Purchase Link : naver smart store

You can purchase it by contacting sales@axden.io


Key feature and functions

MCU Description
CC1310 Sub-G SoC
Sensors Description
L70 GPS sensor
MAX2659 GPS LNA
KXTJ3 3 Axis Accelerometer
Si7201 Hall Sensor
SPV1050 Solar battery charger (Max charge current 80mA)
Solar On board
Battery 3.7V Lithium Battery

It is a motion tracker capable of Sub-G communication.

Sub-G wireless communication is performed using CC1310 SoC

It can be turned on and off using Si7201 hall sensor and magnet.

Use KXTJ3 to collect acceleration sensor values.

The temperature value is collected using the Si7051 sensor.

It operates for 5 years using a battery.


Note

This program is not suitable for mass production and commercialization as an example program.

B2B customers should contact development@axden.io.

For B2B customers, we develop firmware optimized for customers' purposes, such as low power, stabilization, and communication with gateways, for free.

Top Bottom

Pinmap can be found in the file board_define.h


#define LED_RED_GPIO IOID_1
#define LED_BLUE_GPIO IOID_0

#define HALL_SENSOR_GPIO IOID_2

#define BAT_EN_GPIO IOID_7
#define BAT_LEVEL_ADC IOID_6

#define GPS_POWER_EN_GPIO IOID_5

#define I2C_SDA IOID_8
#define I2C_SCL IOID_9

#define UART_RX IOID_4
#define UART_TX IOID_3


Sub-G communication-related settings can be found in the RadioTask.c file.


EasyLink_Params easyLink_params;
EasyLink_Params_init(&easyLink_params);
easyLink_params.ui32ModType = EasyLink_Phy_5kbpsSlLr;

if (EasyLink_init(&easyLink_params) != EasyLink_Status_Success)
{

    SysCtrlSystemReset();

}

EasyLink_getIeeeAddr(mac_address);

if (EasyLink_setFrequency(920000000) != EasyLink_Status_Success)
{

    SysCtrlSystemReset();

}

if (EasyLink_enableRxAddrFilter(mac_address, 8, 1)
        != EasyLink_Status_Success)
{

    SysCtrlSystemReset();

}

radio_packet_protocol.Packet.company_id[0] = COMPANY_ID >> 8;
radio_packet_protocol.Packet.company_id[1] = COMPANY_ID;

radio_packet_protocol.Packet.device_id[0] = DEVICE_TYPE >> 8;
radio_packet_protocol.Packet.device_id[1] = DEVICE_TYPE;

memcpy(radio_packet_protocol.Packet.mac_address, mac_address, 8);

radio_packet_protocol.Packet.control_number = 0;

SensorTask_registerPacketSendRequestCallback(sendPacketCallback);

while (1)
{

    Semaphore_pend(radioAccessSemHandle, BIOS_WAIT_FOREVER);

    EasyLink_setRfPower(TX_POWER);

    radio_sensor_data_packet_send(radio_packet_protocol);

    uint32_t events = Event_pend(radioEventHandle, 0,
    RADIO_TASK_EVENT_ALL,
                                 BIOS_WAIT_FOREVER);

    if (events == RADIO_TASK_EVENT_ACK)
    {

        recv_error_count = 0;

    }
    else if (events == RADIO_TASK_EVENT_ACK_TIMEOUT)
    {

        recv_error_count += 1;

        if (recv_error_count > RECV_ERROR_MAX_COUNT)
        {

            collection_cycle_timeout_count += 3;
            recv_error_count = 0;

        }

    }

}