User Manual ———————————————————————————————————————————————————————————————————
1. Features MR-BLE001 is a small-sized, low-cost Bluetooth BLE standard transparent transmission module developed by Zhijian Internet. The module supports BLE (Up to Bluetooth 5.0). The built-in 512kB FLASH supports dynamic stack and protocol profile configuration, and product functions can be configured through software, providing ultimate flexibility. Both hardware OTA upgrades and multi-boot switching are supported, allowing for convenient product feature rollouts and upgrades.
1.1 Application field ▶Smart jump rope, abdominal wheel and other fitness accessories ▶Smart treadmill, spinning bike and other fitness equipment ▶Smart Home Products ▶Industrial control equipment 2 Electrical Specifications █Rated parameters Item Symbol Min Typical Max Unit Input voltage （4pin） VCC1 3.1 3.3 12.5 V Input voltage VCC2 2.8 3.0 3.6 V Serial port voltage TX/RX 3.0 3.
█Working current Item Symbol Min Typical Max Unit RX current Irx 5.3 mA TX current Itx 4.8 mA sleep state Istandby 1.2 uA Note: Power consumption test conditions: Whole Module Working @0dBm With DCDC enable █RF parameters Item Symbol Min Typical Max Unit Frequency Freq. 2402 - 2480 MHz Range data rate BLE/2.4G Proprietary 1Mbps, ±250kHz deviation BLE/2.
3. Foot Decription █Interface decription Pin # Name Type Description 1 VCC2 PWR 3.
DMIC clock / UART 7816 clock / I2S 5 PA1 I/O clock / GPIO PA[1] 6 PA0_URX I/O DMIC data input / PWM0 inverting output / UART_RX / GPIO PA[0] SPI clock (I2C_SCK) / I2S bit clock / 7 PD7 I/O UART 7816 TRX (UART_TX) / GPIO PD[7] Single wire master / I2S serial data 8 PD4 I/O output / PWM2 inverting output / GPIO PD[4] PWM1 inverting output / I2S serial data 9 PD3 I/O input / UART 7816 TRX (UART_TX) / GPIO PD[3] SPI chip select (Active low) / I2S left 10 PD2 I/O right channel select / PWM
SDM negative output 0 / PWM5 output 12 PB5 I/O / Low power comparator input / SAR ADC input / GPIO PB[5] SDM positive output 1 / SPI data input 13 PB6 I/O (I2C_SDA) / UART_RTS / Low power comparator input / SAR ADC input / GPIO PB[6] SDM negative output 1 / SPI data 14 PB7 I/O output / UART_RX / Low power comparator input / SAR ADC input / GPIO PB[7] I2C serial data / PWM4 inverting 15 PC0_SDA I/O output / UART_RTS / PGA left channel positive input / GPIO PC[0] I2C serial clock / PWM1 i
(UART_TX) / I2Cserial data / (optional) 32kHz crystal output / PGAright channel positive input / GPIO PC[2] PWM1 output / UART_RX / I2C serial 18 PC3 I/O clock / (optional)32kHz crystal input / PGA right channel negative input / GPIO PC[3] PWM2 output / UART_CTS / PWM0 19 PC4 I/O inverting output / SAR ADC input / GPIO PC[4] 20 RST RESET Power on reset, active low 4.
5. Reference PCB Package The Bluetooth operating frequency is 2.4GHz, and the influence of various factors on wireless transceiver should be avoided as much as possible. Notice: ▶ Avoid using metal for the part of the product housing that ▶ The metal screws inside the product should be kept away from the RF part of the module.
▶ To maximize RF performance, user board layout should follow the following recommendations: 1) Antenna clearance area: the user board located directly under the antenna area of the module cannot have any copper foil (including power, ground, signal layers). 2) Module location: Ideally, the module should be arranged in a corner of the user's mainboard, and the PCB antenna is located at the far end of the mainboard. This position minimizes the antenna clearance area 6.
FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.
OEM Guidance 1. Applicable FCC rules This module has been tested and found to comply with part 15.247 requirements for Modular Approval. 2. The specific operational use conditions This module can be used in IoT devices. The input voltage to the module is nominally 3.3V DC. The operational ambient temperature of the module is - 40 to 85 degree C. Only the embedded PCB antenna is allowed. Any other external antenna is prohibited. 3. Limited module procedures N/A 4. Trace antenna design N/A 5.
6. Antenna Antenna type :PCB Antenna; Antenna Max. Peak Gain 0 dBi 7. Label and compliance information When the module is installed in the host device, the FCC ID label must be visible through a window on the final device or it must be visible when an access panel, door or cover is easily re-moved.
