WebJul 21, 2024 · \$\begingroup\$ This probably has to do with mismatched logic levels where a 3v3 MCU output still looks a bit "low ish" to a 5v optocoupler drive (until you added an additional diode drop preventing the LED from reaching its forward voltage knee). But questions about undocumented products are not on topic here. You might try using an … WebJan 3, 2024 · The 5 V capacitor will suppress interference from the PWM affecting the LED commands, The regulator will generally be able to manage the bursts of RF transmission. The WeMOS D1 Mini is supposed to be complete and adequate as is, it is the LED strip that is the additional component. ShermanP December 31, 2024, 3:39pm 9
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