Embedded Firmware Development

Production firmware that ships with the board. Techwall writes firmware for IoT, wireless, baby monitors, ATEX devices, and industrial equipment, then supports it through certification and volume.
Engagement
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What we implement
RF and wireless stacks (FHSS, BLE, Wi-Fi where required), sensor bring-up, power management, OTA, manufacturing test hooks, and a bootloader strategy matched to your MCU and factory test.
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How we work
Same building as the SMT line. Hardware, firmware, and test engineering sit together so bring-up issues close in days, not vendor ping-pong across three time zones.
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You receive
Source, build notes, test fixtures or ICT hooks, and a release process your factory can run. We stay on for field issues after mass production.
How we work
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01 - Bring-up
First silicon, clocks, sensors, and a debug path that manufacturing can repeat.
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02 - Radio and power
Link budget, duty cycle, and sleep currents measured on your PCB, not a vendor eval board.
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03 - Factory test
Fixtures, ICT hooks, and serials so the line fails closed instead of shipping mystery units.
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04 - Release
Signed images, OTA policy if the product needs it, and a support path after MP.
Same building as the line
Hardware, firmware, and test sit together so bring-up issues close in days. That is the difference between a sketch and a board that can certify.
Explore Related Services
Awards and Certifications
Business Social Compliance Initiative (BSCI)
ISO 9001: Quality Management Systems (QMS)
iF International Design Award
Kind + Jugend Innovation Awards
ATEX, IECEx Explosive Products Certification
EU CE Declaration of Conformity
Federal Communications Commission FCC Certification
Bluetooth Low Energy
Awards and Certifications
Manufacturing and AI engineering
Get in touch
Discuss your manufacturing or AI engineering requirements with our Hong Kong team.
Typical reply within one business day.