Selection reference · illustrative scenario
Clock roles in the application
Environmental sensing, utility meters, parking and lighting endpoints may use battery, solar or mains power. Match timing and wireless references to the operating cycle.
Engineering selection review
Review sampling cycles, wake behavior, wireless inputs and outdoor temperature. Long-term timekeeping needs calibration and aging definitions as well as initial tolerance.
Procurement and documentation
Include field power and sampling cycle and wireless module and reference, plus the existing full code, sample and production quantities and delivery target. Discuss nominated international brands and domestic candidates separately, confirming parameters and documents by part.
Illustrative validation scenario
Estimate power from the device duty cycle and validate wake, transmission, logs and power switching. A source-current figure alone does not establish multi-year battery life.
Inquiry & validation checklist
- Field power and sampling cycle
- Wireless module and reference
- Temperature, aging and time error
- Backup and sample-test scope
