jlab-sensing/ENTS-node-firmware

Investigate low power uart peripherial for SDI-12

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#72 opened on Apr 19, 2024

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enhancementgood first issuehelp wanted

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Description

Describe the Enhancement Switch implementation of hardware SDI-12 protocol from full USART to the LPUART to save power.

Benefits Power Savings

Possible Drawbacks Less functionality, maybe speed depending on the clock?

Additional Context When the hardware UART was configured, it was found that USART worked while LPUART didn't. There was also an option something along the lines of overflow protection that needed to be enabled/disabled. @stevegtaylor can provide more detail.

Contributor guide

Research direction
Investigate the LPUART configuration on STM32, compare with USART settings, and test SDI 12 protocol functionality with LPUART. Check clock speed and overflow protection settings.
Tech stack
c
Domain
embedded iot
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
Cembedded systems
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40