What's the simplest way to bridge a device with RS232 (with actual RS232 voltages, not TTL) to wifi?
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Replying to @mjg59
A max232, an esp32/8266 module, and a teeny bit of discretes?

Feb 18, 2020 ยท 7:56 AM UTC

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Replying to @dsilverstone
esp8266 doesn't have a 5V - is there a 3.3V equivalent?
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