Complete voice IC, dynamic TTS, and Bluetooth audio solutions for home health device manufacturers — blood pressure monitors, thermometers, glucose meters, and personal medical equipment.
Supporting everything from basic voice readouts to dynamic text-to-speech announcements and Bluetooth-connected health data sync, helping manufacturers turn silent measurement devices into devices that speak results clearly to every user.
Home medical devices are evolving from screen-only measurement tools into devices that speak results aloud. Voice-announced readings, accessibility for visually impaired and elderly users, and Bluetooth sync to health apps are becoming important differentiators for blood pressure monitors, thermometers, glucose meters, and other personal health devices.
A measurement device that only shows a number on a small screen excludes a large share of its actual users — voice readout is what makes home health devices usable for everyone.
Small LCD screens are hard to read for elderly users or those with vision impairment — the primary user group for blood pressure monitors and glucose meters. Voice-announced readings make results accessible without requiring the user to read a display.
Measurement devices produce a huge range of possible values — blood pressure readings, temperatures, weights. Waytronic’s offline TTS chips synthesize speech directly from the number the device measures, rather than requiring every possible value to be pre-recorded.
Medical measurement devices rely on precision sensors (pressure, temperature, optical) that can be sensitive to electrical noise. Waytronic voice and display chips communicate with the host MCU over digital serial protocols, keeping voice/display logic isolated from sensitive analog sensor circuitry.
Most home medical devices are battery-powered and used intermittently. Ultra-low standby current voice ICs preserve battery life between measurements, so the device is always ready when needed.
Waytronic has been providing voice IC and home health device solutions for over 26 years, helping manufacturers integrate voice prompts, TTS, Bluetooth connectivity, and display functions into blood pressure monitors and other personal medical devices.
From pre-recorded voice prompts to dynamic TTS and Bluetooth-connected health devices, we offer voice ICs, offline TTS chips, BLE solutions, and display+voice chips designed for ultra-low standby current and battery-powered operation.
Cost-Effective Voice Feedback for Blood Pressure Monitors & Thermometers
For blood pressure monitors, thermometers, and simple measurement devices that need reliable pre-recorded voice feedback with minimum hardware cost.
Applications:
Power on/off and measurement start/complete confirmation
Low battery and error alerts
Fixed operation guidance prompts
Combined voice + digital-tube (7-segment) display drive for numeric readouts
Recommended Chips:
WTN6040F-8S
WT588F02B-8S
WT588F02KD-24SS (adds direct 16-digit display drive)
Key Benefits:
– Low BOM cost, compact SOP8/SSOP24 packaging
– Ultra-low standby current suited for intermittently-used battery devices
– Direct speaker drive, no external amplifier needed
– WT588F02KD-24SS drives digital-tube displays and voice from one chip, removing a separate display driver IC
– Rewritable voice content — no need to reprogram for regional or brand-specific prompt wording
Speak Any Measured Value Without Pre-Recording Every Number
For blood pressure monitors, smart scales, and glucose meters that need to announce dynamically measured values — not just a fixed set of pre-recorded phrases.
Applications:
Spoken blood pressure and pulse readings (systolic/diastolic/pulse)
Spoken body weight and temperature readings
Real-time announcement of any MCU-generated numeric or text value
Elderly-friendly slower speech rate for clearer comprehension
Recommended Chips:
WT3000T8-32N (Chinese + English letters, lowest cost)
WT3000T3-32N (adds full English sentences, variable speed/pitch)
Key Benefits:
– Synthesizes speech directly from text/numbers sent over UART — no need to pre-record every possible reading
– Automatic number, decimal, and unit reading (e.g., “120 over 80”, “36.5 degrees”)
– Variable speech rate (0.5x–2.0x) supports slower, elderly-friendly announcement pacing (WT3000T3-32N)
– Fully offline synthesis — no cloud dependency, no per-use API cost
– QFN32 (4×4mm) ultra-compact package fits space-constrained handheld device PCBs
Voice Prompts + BLE Data Sync for Connected Medical Devices
For medical devices that pair with a companion smartphone app to track measurement history and trends over time.
Applications:
BLE sync of measurement data to a health-tracking app
Local voice announcement of the measured value alongside app sync
App-controlled configuration (units, alert thresholds, reminders)
Optional Bluetooth audio for devices that also play guided instructions
Recommended Chips:
WT2801A4-32N (BLE-only, local voice prompts)
WT2605C8-32N (adds classic Bluetooth audio for guided instruction playback)
Key Benefits:
– BLE 5.4 low-power connectivity, minimal impact on battery-powered device runtime
– Local voice playback continues to work even when not paired to a phone
– PWM direct speaker drive (WT2801A4-32N) removes the need for an external amplifier
– AT command / UART frame protocol for straightforward MCU integration
– Industrial temperature range (-40°C ~ +85°C) for consistent performance across storage conditions
Replace a Display Driver IC and a Separate Voice Chip With One
For manufacturers building blood pressure monitors, thermometers, and small-screen medical devices that need both a numeric display and voice announcement, the WT588F02KD-24SS and WT2003Bx family reduces BOM complexity.
Traditional medical device designs often require separate:
This increases:
– BOM cost
– PCB complexity
– Vendor management complexity
– Development and validation time
Recommended Chips by Application Tier:
WT588F02KD-24SS — direct 16-digit display drive + rewritable voice playback, ideal for blood pressure monitor and thermometer readouts
WT2003Bx — for devices adding a small color TFT screen (0.96″–2.06″) alongside voice and touch
Beyond pre-recorded and synthesized voice prompts, Waytronic solutions also support:
Voice Recording: WT2000P-series and WT2003H-series recording chips let manufacturers record custom guidance voice content directly, useful for step-by-step measurement instructions or brand-specific prompts.
Rewritable Voice Content: WT588F-series chips can have their voice content erased and rewritten via a compatible downloader, useful for regional language variants or wording revisions without requalifying the hardware.
Expandable Multi-Language Support: Voice packs can be stored on external Flash and swapped without a hardware redesign, letting one device platform serve multiple export markets.
WT3000T8-32N speaks the actual measured systolic, diastolic, and pulse values in real time, so users don’t need to read a small screen — particularly valuable for elderly users who are the primary user group for these devices.
Dynamic TTS or pre-recorded voice confirms measurement completion and announces the reading, reducing misreadings of small displays.
WT588F02KD-24SS drives a 16-digit display directly while also playing voice prompts, letting manufacturers combine the two most common medical device output methods on a single chip.
WT2801A4-32N syncs measurement data to a companion phone app via BLE while still announcing the reading locally through voice, so the device works whether or not a phone is paired.
WT3000T3-32N’s variable speed control (0.5x–2.0x) allows manufacturers to configure a slower, clearer announcement pace tuned for elderly users or accessibility-focused product lines.
Supports Mandarin, English, and other languages through swappable voice files, letting manufacturers serve multiple international markets from a single hardware platform.
Waytronic provides comprehensive development support to accelerate your time-to-market:
SDK & API Access — Modular components for quick integration
Online Platform(https://wt588f.waytronic.com:8443) — Chip selection, project configuration, voice synthesis, and project export
Programming Tools — USB downloader, test boards, programming fixtures for all chip series
FAE Support — Dedicated field application engineers for design-in assistance
Custom Development — Embedded development, hardware design, app/mini-program, and web services
Whether you need a simple voice prompt chip, dynamic TTS readout for measured values, or a connected Bluetooth health device solution, Waytronic has the right solution for your project.
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