BTM0
Bluetooth Module
User Manual
ATTOWAVE CO., LTD.
Introduction
1.1 Product Overview
The BTM0 was an Attowave co., Ltd. Bluetooth Module. The BTM0 is used to add Bluetooth to Radar detectors. It uses Bluetooth Low Energy to communicate between the Radar detector and a Bluetooth LE-equipped smartphone.
1.2 Features
1.2.1 Bluetooth
- DA14585(Bluetooth Low Energy 4.2)
- Processor
- ARM Cortex-M0, 32bit, 16MHz
- Dedicated Link Layer Processor
- AES-128bit encryption Processor
- Memory
- 64 KB OTP Memory
- 128 KB ROM
- 96 KB Retention SRAM
- External Flash
- 8M-Byte SPI Flash
- Operating Clock
- 16MHz
- Antenna
- Embedded Antenna
- IO Interfaces
- UART
- SWD
- GPIO
- Power Input
- Single 3.3V Power Input
- Package
- Module – 25 x 15 x 1 mm (L x W x H)
1.3 Specifications Table
1.3.1 General
| Feature | Description |
| Product Description | Bluetooth Module |
| Major Chipset | Dialog DA14585 |
| Host Interface | CART |
| Dimension | 25 x 15 x 1 mm (L x W x H) |
| Antenna | Microstrip Antenna (Built-in) |
1.3.2 Bluetooth
| Feature | Description |
| Bluetooth version | BLE 4.2 |
| Frequency Range | 2402 ~ 2480 MHz |
| Modulation | GFSK for Bluetooth |
| Target power | -2dBm |
| Mode | Target Power | Measured Power |
| [dBm] | [dBm] | |
| BLE_1Mbps_Lowest | -2 | -2.38 |
| BLE_1Mbps_Middle | -2 | -2.07 |
| BLE_1Mbps_Highest | -2 | -1.8 |
1.3.3 Operating Conditions
| Feature | Description |
| Operating Conditions | |
| Voltage | 3.3V |
| Operating Temperature | -30 ~ 85℃ |
| Operating Humidity | TBD |
| Storage Temperature | -40 ~ 85℃ |
| Storage Humidity | TBD |
| ESD Protection | |
| Human Body Model | TBD |
| Changed Device Model | TBD |
2. Pin Definition
| Pin name | Basic Description | Type | Level |
| Power Supply | |||
| VBAT3V | 3.3V Power Supply | AIO | 3.3V |
| VBAT_RF | 3.3V Power Supply | AIO | 3.3V |
| GND | Ground | AIO | |
| Debug Interface and Reset | |||
| SWDIO | JTAG Data input/output | I/O | 3.3V |
| SWCLK | JTAG clock signal input | I/O | 3.3V |
| RST | Reset signal (active high). Must be connected to GND if not used | I | 3.3V |
| SPI Bus Interface | |||
| SPI_CLK | Input/Output, SPI clock | DO | 3.3V |
| SPI_EN | Output, SPO chip enable | DO | 3.3V |
| SPI_DO | Output, SPI Data output | DO | 3.3V |
| SPI_DI | Input, SPI Data input | DI | 3.3V |
| UART Interface | |||
| URX | Input, UART receive data | DI | 3.3V |
| UTX | Output, UART transmit data | DO | 3.3V |
| GPIO | |||
| P1.3 | GPIO | I/O | 3.3V |
| Clock | |||
| XTAL16Mm | Output, Crystal output for the 16 MHz XTAL | AO | |
| XTAL16Mp | Input, Crystal input for the 16 MHz XTAL | AI | |
Electrical Characteristics
3.1 Absolute Maximum Ratings
| Symbol | Parameter | Min | Typ | Max | Unit |
| VBAT3V | 3.3V power supply | 3.3 | 3.6 | V |
3.2 Recommended Operating Conditions
| Symbol | Parameter | Min | Typ | Max | Unit |
| VBAT3V | 3.3V power supply | 3.0 | 3.3 | 3.6 | V |
3.3 Digital IO Pin DC Characteristics
| Symbol | Parameter | Min | Typ | Max | Unit |
| VIA | Input High Voltage | 0.84 | V | ||
| VIL | Input Low Voltage | 0.36 | V |
Federal Communications Commission Interference Statement
1.1 Liability for illegal acts
Anyone who uses this product for illegal purposes shall be liable and he or she shall be held responsible for all and any consequences.
1.2 FCC licensing information
λ Federal Communications Commission Interference statement
NOTE: Change or modification not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures.
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
– Consult the dealer or an experienced radio, TV technician for help.
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.
NOTE: To comply with FCC RF exposure limits for general population/uncontrolled exposure, the antenna(s) used for this transmitter must not be collocated or operating in conjunction with any other antenna or transmitter.
RF exposure statements
NOTE: This module does not have RF shielding and needs to be tested inside a host device and submit for C2PC filing whenever the host changed.
This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body or nearby persons.
CFR 47 FCC PART 15 SUBPART C (Part 15.247) has been investigated. It is applicable to the modular transmitter.
The devices must be installed and used in strict accordance with the manufacturer’s instructions as described in the user documentation that comes with the product.
We will retain control over the final installation of the modular such that compliance of the end product is assured. In such cases, an operating condition on the limit modular approval for the module must be only approved for use when installed in devices produced by a specific manufacturer. If any hardware modifications or RF control software modifications will be made by the host manufacturer, a C2PC or a new certificate should be applied to get approval, if those changes and modifications made by the host manufacturer not expressly approved by the party responsible for compliance,then it is illegal.
If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “CONTAINS FCC ID: W75-BTM0” Any company of the host device which install this modular with limited modular approval should perform the test of radiated & conducted emission and spurious emission,etc. according to FCC part 15C : 15.247
and15.209 & 15.207,15B Class B requirement, Only if the test result complies with FCC part 15C: 15.247 and 15.209 &15.207,15B Class B requirement, then the host can be sold legally.
Documents / Resources
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AttoWave BTM0 Bluetooth Module [pdf] User Manual BTM0, W75-BTM0, W75BTM0, BTM0 Bluetooth Module, BTM0, Bluetooth Module |
