YLB1 Reset & Teardown (FCC ID 2ANDL-YLB1)

Before you buy the Tuya Global YLB1, check what's inside.

The YLB1 is a compact, low-power Bluetooth LE module developed by Tuya, designed for integration into various smart home and IoT devices. It utilizes the BK3432 chipset, enabling low-energy communication for applications like smart lighting and health products.

⚠️ NOTE: Ensure correct battery polarity and voltage range (1.61-3.6V) when powering the module.

Quick Specs

Manufacturer: Tuya Global
Model: YLB1
Protocol: WiFi
Chipset: Realtek/Beken
Ecosystem: Tuya / Smart Life
App: Smart Life

🔧 Geek Corner (Flashing Info)

Chipset: BK3432
Flashable: ❌ No
Info: The BK3432 chipset is proprietary and not typically user-flashable with custom firmware like Tasmota or ESPHome.

User Manual

Scanned pages from the official user manual:

YLB1 Manual

External Photos

Photos of the device exterior:

YLB1 Exterior

Internal Photos

Teardown photos showing the PCB and components:

YLB1 PCB

Verdict

The YLB1 is a WiFi device from the Tuya / Smart Life ecosystem.

📄 Click to view full text manual (SEO)

YLB1 Module Datasheet
Hardware Product Development > Network Modules > BLE Module >
BK Series
Version: 20210311
Online Version
Contents
Contents
1 Overview 2
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Change history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Module interfaces 3
2.1 Dimensions and package . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Pin deﬁnition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Electrical parameters 9
3.1 Absolute electrical parameters . . . . . . . . . . . . . . . . . . . . . 9
3.2 Working conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Power consumption in working mode . . . . . . . . . . . . . . . . . . 10
4 RF parameters 11
4.1 Basic RF features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 RF output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 RF receiving sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Antenna 12
5.1 Antenna type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2 Antenna interference reduction . . . . . . . . . . . . . . . . . . . . . 12
6 Packaging information and production instructions 13
6.1 Mechanical dimensions and dimensions of the back of the pad . . . . . 13
6.2 Production instructions . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3 Recommended oven temperature curve . . . . . . . . . . . . . . . . . 15
6.4 Storage conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7 MOQ and packaging information 18
8 Appendix: Statement 18
i
Contents
YLB1 is a low-power embedded Bluetooth module that T uya has developed. Em-
bedded with the Bluetooth network communication protocol stack and rich library
functions
1 / 20
1 OVERVIEW
1 Overview
YLB1 consists of a highly integrated Bluetooth chip (BK3432) and a few peripheral
circuits. YLB1 further consists of a low-power 32-bit MCU, a Bluetooth 2.4G-radio, a
160-KB ﬂash memory, and a 20-KB static random-access memory (SRAM).
1.1 Features
• Embedded low-power 32-bit MCU, which can also function as an application
processor.
• Built-in high-precision 10-bit ADC
• Working voltage: 1.61 to 3.6V
• Support interfaces such as UART, GPIO, I2C, PWM, ADC, SPI and JTAG
• Bluetooth LE RF features
– Compatible with the Bluetooth LE 4.2
– The RF data rate can be up to 1 Mbps.
– TX power:+3 dBm
– RX sensitivity: -92 dBm@Bluetooth LE 1 Mbps
– Onboard PCB antenna with a gain of 0.2 dBi
– Working temperature: -20℃ to +85℃
1.2 Applications
• Smart LED
• Smart home
• Health products
1.3 Change history
Date Updated content Version after update
2021-2-22 This is the ﬁrst release. V1.0.0
2 / 20
2 MODULE INTERFACES
2 Module interfaces
2.1 Dimensions and package
YLB1 has 3 rows of pins with a spacing of 1.25 mm. The YLB1 dimensions are
12±0.35 mm (W)×18±0.35 mm (L) ×2.8±0.15 mm (H). ...