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Hey it's the Holidays!
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Hey it's the Holidays!
Forum Merry Microchips! — 2025 Holidays Competition Discussion Thread
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  • holidays 2025
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Merry Microchips! — 2025 Holidays Competition Discussion Thread

JoRatcliffe
JoRatcliffe 7 days ago

Hi all, in the spirit of the e14 Community 2025 Holidays competition kicking off, I thought I would start up a discussion thread.

This is your space for sharing project ideas, discussing any challenges or successes that come up while building your projects, and also any general Holidays plans or conversation Snowflake️Snowman2️Christmas tree

You are also very welcome to DM me with any questions on competition details and so on Slight smile

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  • robogary
    robogary 7 days ago +3
    youtu.be/sBXgXvNkf8U
  • ntewinkel
    ntewinkel 7 days ago in reply to robogary +3
    That sounds like a good idea!
  • balajivan1995
    balajivan1995 7 days ago +2
    I am thinking of making a solar powered smart pot. There are lots of cheap chinese models already available. But most of them requires continuous power supply. My last year project was an absolute drain…
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  • balajivan1995
    balajivan1995 7 days ago

    I am thinking of making a solar powered smart pot. There are lots of cheap chinese models already available. But most of them requires continuous power supply. My last year project was an absolute drain on power. So I'm looking for some low power mcu with small form factor, small e-ink display. I already have a small i2c based load sensor which can be used to alert when water level is low. I only need to worry about water proofing the circuit.

    image

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  • balajivan1995
    balajivan1995 7 days ago in reply to balajivan1995

    Hopefully this will make anyone who wants to grow a plant as a new year resolution to take it seriously.

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  • JoRatcliffe
    JoRatcliffe 7 days ago in reply to balajivan1995

    Remembering to stick to new year resolutions and make them a routine can be tough (speaking just for myself...) so something that acts as a reminder and helps someone keep to a new routine sounds great Slight smile

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  • balajivan1995
    balajivan1995 6 days ago in reply to JoRatcliffe
    JoRatcliffe said:
    stick to new year resolutions

    My new year resolution for 2026 is using green energy for small projects. I am thinking of buying some small solar panels (10-20Wh) and energy harvester circuits(0.5-1Wh). I have already started using rechargeable batteries (AA) wherever possible. But I don't have much experience in the component selection for low power devices, battery charging circuits (for LiPo, 18650). I think next year there will be lots of trials and errors.

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  • beacon_dave
    beacon_dave 4 days ago in reply to balajivan1995

    That should be quite an interesting activity. A while ago I bought a USB power bank (3x 18650) which has a solar charger built-in but indoors my 6W rated panel isn't really up to it. I ended up using a joule thief circuit to charge it using old alkaline batteries before disposal.

    Have you seen Doug's super capacitor weather station project where he runs a microcontroller off a super capacitor charged by a solar panel ?

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  • beacon_dave
    beacon_dave 4 days ago in reply to balajivan1995

    That should be quite an interesting activity. A while ago I bought a USB power bank (3x 18650) which has a solar charger built-in but indoors my 6W rated panel isn't really up to it. I ended up using a joule thief circuit to charge it using old alkaline batteries before disposal.

    Have you seen Doug's super capacitor weather station project where he runs a microcontroller off a super capacitor charged by a solar panel ?

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