TechInsights Teardown: Kwikset Halo Touch FP Wi-Fi

The smart home market has really taken off since the inception of the Amazon Alexa smart home speaker. It launched an entire line of devices that not only enhanced how functions are done in the home but how they can be done through automation.

Smart home devices went from just a device that could tell a consumer the weather or news or play music became a market where locking a door was easier, closing the blinds was automated, thermostats saved homeowners money and lighting could have themes to meet the time of day or an event.

Kwikset is a smart home device maker focused on devices to make automation in the home simpler.

The Halo Touch Wi-Fi smart lock is controlled through an app via Wi-Fi in the home or homeowners can use a smart home hub to control the system unlocking and locking doors or giving out guest keys.

The following is a partial deep dive into the smart lock conducted by TechInsights.

Summary points

• Wi-Fi
• Touch control
• Smart home control

Price: $239

Released: September 2020

Availability: Worldwide

Target market: Consumer

The main board inside the Halo Touch Wi-Fi smart lock. Source: TechInsights

Main board

The main board includes the main heart of the control system of the Kwikset Halo Touch smart lock. The electronic devices on the board are:

• Texas Instruments’ 500 mA adjustable LDO regulator
• Indie Semiconductor’s security and communication chip
• Winbond’s serial flash memory
• Microchip’s authentication IC
• Monolithic Power Systems’ 150 mA/3.3-volt linear regulator
• Melexis’ hall effect sensor
• Silicon Labs’ Bluetooth 5 LE Blue Geck SoC
• ST Microelectronics’ six-axis MEMS accelerometer and compass

(Learn more about logic chips on Globalspec.com)

The Wi-Fi board inside Kwikset’s Halo Touch smart lock system. Source: TechInsights

Wi-Fi board

The Wi-Fi subsystem is the board used to connect to home wireless internet. The board includes TI’s single chip Wi-Fi 4 with MCU and Macronix’s serial flash memory.

(Learn more about WiFi chips on Globalspec.com)

The lock board includes many functions to connect the locking mechanisms to the Wi-Fi and other subsystems. Source: TechInsights

Exterior lock board

This board is the control system for the smart lock itself. The electronic components on the board include:

• TI’s 200 mA/1.8-volt LDO regulator, single-chip Wi-Fi4 and microcontroller
• NXP Semiconductors’ 32-bit ARM Cortex-M33 microcontroller

(Learn more about microcontrollers on Globalspec.com)

Several of the electronic components found inside the Halo Touch Wi-Fi smart lock. Source: TechInsights

Major components

• $7.58 — WiFi Subsystems — Texas Instruments (Qty: 1)
• $6.80 — Main frame (Qty: 1)
• $6.78 — Main frame (Qty: 1)
• $4.85 — Back cover (Qty: 1)
• $4.47 — Fingerprint sensor (Qty: 1)
• $3.35 — Cylinder lock (Qty: 1)
• $1.83 — Turnpiece shaft (Qty: 1)
• $1.51 — Motor (Qty: 1)
• $1.32 — Bluetooth 5 LE — Silicon Labs (Qty: 1)
• $1.25 — Back cover (Qty: 1)