नेबुला BT638 BLE मॉड्यूल
आवृत्ती रेकॉर्ड
| आवृत्ती | तारीख | लेखक | सामग्री |
| V1.0 | प्रारंभिक प्रकाशन |
परिचय
ओव्हरview
The BT638 Bluetooth module is designed based on the TLSR8232 chip. It’s a Bluetooth BLE4.2 module that supports UART transparent transmission and AT commands. When in Bluetooth connection mode, it enters data transparent transmission mode. When not connected, it can be configured via AT commands to adjust parameters such as broadcast interval and device name.
प्रमुख वैशिष्ट्ये
- ब्लूटूथ V4.2 मानक तपशील
- Class II RF power, with microampere-level ultra-low power consumption
- अल्ट्रा-लो व्हॉल्यूमtage operation, compatible with 3V button batteries
- एकाधिक इंटरफेस: PIO/UART/AIO/I²C/SPI/PWM
- RoHS lead-free manufacturing process
- Dimensions: 16.5mm (L) × 13.3mm (W)
- Two variants: BT638-1 (without shielding cover) and BT638-2 (with shielding cover)
अर्ज फील्ड
The BT638 module is designed for IoT and HID (Human Interface Devices) applications, including but not limited to:
- Smart home devices (access control, LED lighting control)
- Fitness equipment (treadmills, exercise machines)
- Medical devices (pulse meters, blood pressure monitors)
- Home entertainment devices (remote controls, toys)
- Office equipment (printers, scanners)
- Commercial devices (cash registers, QR code scanners)
- Mobile device accessories (for phones, tablets, and computers)
- Automotive equipment (car repair tools)
- RF and infrared remote controllers
Hardware Highlights
- Supports up to 16 GPIOs in addition to UART communication pins
- Equipped with hardware flow control UART interface and Swire debug interface
- ६ पर्यंत PWM चॅनेल
- 6-channel 14-bit ADC
- TX output power: up to +8 dBm
- हार्डवेअर कनेक्शन आकृती
Hardware connection diagram
The functional pins of the module can be reconfigured according to specific applications.
उदाample, PB3 can be set as a Bluetooth control pin (BTC) to switch other devices on/off, and PA1 can be configured as a low-power control wake-up pin (P_SLEEP) to wake up the Bluetooth module or perform other functions.
इलेक्ट्रिकल पॅरामीटर्स
परिपूर्ण कमाल रेटिंग
| आयटम | सायम. | मि. | कमाल | युनिट | अटी |
| पुरवठा खंडtage | VDD | -0.3 | 3.9 | V | All AVDD and DVDD
pin must have the same voltage |
| खंडtage on input pin | VIN | -0.3 | VDD+0.3 | V | – |
| आउटपुट व्हॉल्यूमtage | VOUT | 0 | VDD | V | – |
| स्टोरेज तापमान श्रेणी | टीएसटीआर | -65 | 150 | ℃ | – |
| सोल्डरिंग तापमान | टीएसएलडी | – | 260 | ℃ | – |
शिफारस केलेल्या ऑपरेटिंग अटी
| आयटम | सायम. | मि | टाइप करा. | कमाल | युनिट | अटी |
| वीज पुरवठा खंडtage | VDD | 1.9 | 3.3 | 3.6 | V | – |
| पुरवठा वाढण्याची वेळ
(from 1.6 V to 1.8 V) |
Tr | – | – | 1 | ms | – |
| ऑपरेटिंग तापमान श्रेणी | TOpr | -40 | – | 85 | ℃ | – |
Current Consumption (VDD = 3.3 V, T= 25℃)
| मोड | सायम. | मि | टाइप करा. | कमाल | युनिट | अटी |
|
TX |
ITx |
– | 14.5 | – | mA | 0dBm Continuous Tx transmission |
| – | 25 | – | mA | 8dBm Continuous Tx transmission | ||
| RX | IRx | – | 16. | –
– |
mA | Continuous Rx reception |
| निलंबित करा |
Isusp |
– | 8 | – | .ए | IO wake up |
| – | 10 | – | .ए | Timer wake up | ||
| Flash not included, | ||||||
| IDeep1 | – | 1 | – | .ए | without 32kHz external
XOSC, and internal 32kHz |
|
| RC OSC off | ||||||
| Flash not included, with | ||||||
| गाढ झोप | IDeep2 | – | 1.7 | — | .ए | 32kHz external XOSC,
and internal 32kHz RC |
| OSC off | ||||||
| Flash not included, | ||||||
| IDeep3 | – | 2.2 | – | .ए | without 32kHz external
XOSC, and internal 32kHz |
|
| RC OSC on |
टीप:
Without 32K RC: The wakeup source is external signal from GPIO input， the internal 32K RC is disabled
With 32K RC: The wakeup source is 32K RC， it is enabled.
Module Pins and Descriptions
| नाही. | नाव | वर्णन |
| 1 | GND | ग्राउड |
| 2 | VCC | 3.3V वीज पुरवठा |
| 3 | NC | NC |
| 4 | PC2 | SPI Slave chip select (active low) / SPI Master chip select(active low) / PWM0 inverting
output/ UART_CTS / GPIO PC[2] |
| 5 | PC7/SWS | Single wire slave / PWM3 output / GPIO PC[7] in Program mode as SWS |
| 6 | PA1 | PWM3 inverting output/UART_CTS / GPIO PA[1]
(Set to Sleep-Wake UP Function H for Sleep L for Active) |
| 7 | NC | NC |
| 8 | PC3 | SPI Slave data output / SPI Master data output / PWM5 inverting output / UART_RTS/
GPIO PC[3] |
| 9 | PC4 | SPI Slave data input / I2C Master serial data / SPI Master data input / UART_TX / GPIO
पीसी[५] |
| 10 | PC5 | SPI Slave clock / I2C Master clock / SPI Master clock / UART_RX / GPIO PC[5] |
| 11 | PC1 | PWM2 inverting output / GPIO PC[1] |
| 12 | PA5 | PWM5 output / I2C Slave clock / I2C Master clock / GPIO PA[5] |
| 13-19 | NC | NC |
| 20 | PA4 | PWM2 output / UART_RX / I2C Master serial data / SPI Slave clock / GPIO PA[4] ( Set to UART RX) |
| 21 | PA3 | PWM4 output / UART_TX / I2C Master clock / SPI Slave data input / GPIO PA[3] (Set
to UART TX) |
| 22 | PA6 | PWM4 inverting output / I2C Slave serial data / I2C Master serial data / Control
external LNA / GPIO PA[6] |
| 23 | PB1 | PWM1 output / SPI Master data output / Control external PA / GPIO PB[1] /PGA input | ||
| 24 | PB2 | PWM2 output / SPI Master data input / UART_CTS / I2C Master clock / GPIO PB[2] /
PGA input |
||
| 25 | PB3 | PWM0 output / SPI Master clock / UART_RTS / I2C Master serial data / GPIO PB[3]
（SET to Blue Tooth Control Pin） |
||
| 26 | PB4 | PWM1 inverting output / UART_TX / GPIO PB[4] / PGA input | ||
| 27 | PB5 | PWM4 output / UART_RX / GPIO PB[5] / PGA input | ||
| 28 | NC | NC |
मॉड्यूल यांत्रिक परिमाण
Module Circuit Diagram
BOM
| PCB assembly parts | ||||
| भागाचे नाव | वर्णन | QTY | युनिट | शेरा |
| कॅपेसिटर | ROHS 1.8pF 0201, X7R, +/-10% | 2 | C1, C2 | |
| कॅपेसिटर | ROHS 1μF 0201, X7R, +/-10% | 4 | C3, C6, C7, C8 | |
| प्रेरक | ROHS 2.2nH 0402, +/-5% | 1 | L1 | |
| IC | Telink 2.4G Bluetooth IC TLSR8232F512ET24 QFN24 | 1 | U1 | |
| स्फटिक | 24 MHz 12 pF 20 ppm 2016 Package | 1 | Y1 | |
| पीसीबी | ROHS double-sided FR4, thickness 0.8mm,
dimensions 16.5mm×13.3mm |
1 | मुख्य पीसीबी | |
| झाल केस | Nickel silver, thickness 0.2mm, laser-etched QR code | 1 | Same as BT628-2 | |
मॉड्यूल इंस्टॉलेशन आवश्यकता
- The BT638 module operates at 2.4GHz, so its placement on the product is critical to antenna performance. Avoid the following:
- Metal enclosures can shield RF signals and prevent the module from working properly.
- Keep internal metal components away from the module’s RF section.
- Place the module around the edges of the mainboard, with the antenna part near the edge or corner. Avoid copper pours or traces under the antenna.
- It’s recommended to extend the antenna area outward from the main PCB to position the module as close to the edge as possible.
A、B：Strongly recommended。C, D, E：Acceptable but not recommended。- F：If the main PCB lacks space, maintain a 15mm gap between the module and the main PCB
Module Reflow Soldering Recommendations
Module Welding Guidance (Refer to IPC/JEDEC Industry Standard)
| Preheating process | |
| Rump up rate：
From TS (25℃ Room temperature)to TL （Preheating temperature） |
2℃/s (Max) |
|
Preheating temperature TL |
150℃ (Min.)
175℃ (Typ.) 200℃ ( Max.) |
| Preheat वेळ | ५~७ से |
| सोल्डरिंग | |
| Heating rate for soldering：from (Preheating temperature) TL to TP
（Peak temperature) |
1~2℃/s |
| Tolerance of TP | 245℃ +0/-5℃ |
| Duration of TP | 10 एस |
| Duration of soldering （Above 217℃) | ५~७ से |
| Ramp खाली दर | 2.5℃/s (Max.) |
The reflow curve recommended
FCC विधान
FCC मानके: FCC CFR शीर्षक 47 भाग 15 उपभाग C विभाग 15.247
अँटेना गेन -6.13dBi सह पीसीबी अँटेना
हे डिव्हाइस FCC नियमांच्या भाग 15 चे पालन करते. ऑपरेशन खालील दोन अटींच्या अधीन आहे:
- हे डिव्हाइस हानीकारक हस्तक्षेप होऊ शकत नाही, आणि
- या डिव्हाइसने प्राप्त केलेला कोणताही हस्तक्षेप स्वीकारणे आवश्यक आहे, ज्यामध्ये हस्तक्षेपासह अवांछित ऑपरेशन होऊ शकते.
अनुपालनासाठी जबाबदार असलेल्या पक्षाने स्पष्टपणे मंजूर केलेले कोणतेही बदल किंवा बदल उपकरणे चालविण्याचा वापरकर्त्याचा अधिकार रद्द करू शकतात.
Note: 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:
- रिसिव्हिंग अँटेना पुनर्स्थित करा किंवा पुनर्स्थित करा.
- उपकरणे आणि रिसीव्हरमधील पृथक्करण वाढवा.
- रिसीव्हर कनेक्ट केलेल्या सर्किटपेक्षा वेगळ्या सर्किटवरील आउटलेटमध्ये उपकरणे कनेक्ट करा. -
- मदतीसाठी डीलर किंवा अनुभवी रेडिओ/टीव्ही तंत्रज्ञांचा सल्ला घ्या.
FCC रेडिएशन एक्सपोजर स्टेटमेंट
This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. If the FCC identification number 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 Transmitter Module FCC ID: 2BAMT-BT638-2 Or Contains FCC ID: 2BAMT-BT638-2”
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.
Any company of the host device which install this modular with modular approval should perform the test of radiated & conducted emission and spurious emission,etc. according to FCC part15B Class B requirement, Only if the test result comply with FCC part 15B Class B requirement，then the host can be sold legally. When the module is installed inside another device, the user manual of the host must contain above Paragraphs A, B, and C warning statements.
कागदपत्रे / संसाधने
 |
नेबुला BT638 BLE मॉड्यूल [pdf] मालकाचे मॅन्युअल BT638-2, 2BAMT-BT638-2, 2BAMTBT6382, BT638 BLE मॉड्यूल, BT638, BLE मॉड्यूल, मॉड्यूल |