Commit 3e5534ca authored by Paul Sokolovsky's avatar Paul Sokolovsky
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docs/esp8266/intro: Focus on hazards of unearthed power wrt electronics.

parent 1bc29111
......@@ -116,12 +116,11 @@ after it, here are troubleshooting recommendations:
in general. If you experience issues with self-made or wall-wart style power
supply, try USB power from a computer. Unearthed power supplies are also known
to cause problems as they source of increased EMI (electromagnetic interference)
- at the very least, as by the common safety standards they are considered
a hazard which may lead to electrical device breakdown and eletric shock to
humans. Please avoid using unearthed power connections at any time. In regard
to FlashROM hardware problems, there are independent (not related to MicroPython
in any way) reports
`(e.g.) <https://github.com/peterhinch/micropython-samples.git>`_
- at the very least, and may lead to electrical devices breakdown. So, you are
advised to avoid using unearthed power connections when working with ESP8266
and other boards. In regard to FlashROM hardware problems, there are independent
(not related to MicroPython in any way) reports
`(e.g.) <http://internetofhomethings.com/homethings/?p=538>`_
that on some ESP8266 modules, FlashROM can be programmed as little as 20 times
before programming errors occur. This is *much* less than 100,000 programming
cycles cited for FlashROM chips of a type used with ESP8266 by reputable
......
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