TinyCircuits Forum
TinyCircuits Products => TinyDuino Processors & TinyShields => Topic started by: GrandPoohbah on June 14, 2019, 01:27:23 PM
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I am using a TinyZero with the Tiny WiFi Shield to create a web host on my local network. This lets one use any browser to query and control the TinyZero. For example, turn on a LED or a NeoPixel (a WS2812B). This works well when the TinyZero is connected to USB for power, but not when it's solely on fully-charged battery power (150mAh lithium-ion) The LED will still turn on with battery power, but the NeoPixel will not turn on.
USB Power: LED and NeoPixel
Battery power: LED only
Why is this happening?
And how can I illuminate one or more NeoPixels without requiring a connection to USB power?
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This is simply because the NeoPixels require 5V to operate and the Li-Po battery only supplies 3.7V. USB power would supply 5V, but if you want to power this project from a battery, look into a higher voltage battery or battery pack.
Hope this helps.