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Yourryong manuals

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YOURRYONG NRF51822 Modular Board User Manual

NRF51822 • August 5, 2026
This manual provides detailed instructions for the YOURRYONG NRF51822, NRF51822-A1, and NRF51822-S1 modular boards, covering installation, operation, maintenance, and troubleshooting.

YOURRYONG ZK-R502E Audio Amplifier Module User Manual

ZK-R502E • February 11, 2026
Comprehensive user manual for the YOURRYONG ZK-R502E Audio Amplifier Module, covering setup, operation, maintenance, troubleshooting, and specifications for the dual-channel 2x50W amplifier with volume, treble, and bass controls.