Whirlybird: Difference between revisions

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</pre>

Further experimentation is indicating it may be related to a fault in the thru-hole GPI0 as directly shorting <code>GPIO0</code> (Pin 27) to ground can result in the following.

Further experimentation <strike>is indicating it may be related to a fault in the thru-hole GPI0 as</strike> directly shorting <code>GPIO0</code> (Pin 27) to ground can result in the following.

<pre>

ESP-ROM:esp32s3-20210327

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However this seems to hang the USB connection and nothing further happens until it times out.

'''Update:''' the results above have been the result of <code>GPIO46</code> (Pin 16) floating. This is resolved by pulling it to ground along with <code>GPIO0</code> to properly enable <code>USB/UART0</code> for flashing. This can also be achieved using <code>TP50</code> which also connects to <code>GPI046</code>.

Some of the boards do properly enter "Boot Mode" which is done by connecting <code>GPIO0</code> to ground. This can easily be done by using a jumper wire from a through hole header that exposes both <code>GPIO0</code> and ground and pressing a reset button immediately below it. Alternatively this can be achieved by using a wire pressed to the bottom right most module pin and the metal RF shield on top of the module while connecting USB to power on.

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Once launched, any running code may be halted, entering <code>repl</code> will give an interactive Micropython prompt. Entering <code>Ctrl+D</code> will do a soft reset and any code configured to automatically start such as <code>main.py</code> will then run and you will see any output such as from <code>print()</code> in the terminal.

== IMU ==

@@ Line 138: / Line 138: @@
 </pre>
-Further experimentation is indicating it may be related to a fault in the thru-hole GPI0 as directly shorting <code>GPIO0</code> (Pin 27) to ground can result in the following.
+Further experimentation <strike>is indicating it may be related to a fault in the thru-hole GPI0 as</strike> directly shorting <code>GPIO0</code> (Pin 27) to ground can result in the following.
 <pre>
 ESP-ROM:esp32s3-20210327
@@ Line 161: / Line 161: @@
 However this seems to hang the USB connection and nothing further happens until it times out.
+'''Update:''' the results above have been the result of <code>GPIO46</code> (Pin 16) floating. This is resolved by pulling it to ground along with <code>GPIO0</code> to properly enable <code>USB/UART0</code> for flashing. This can also be achieved using <code>TP50</code> which also connects to <code>GPI046</code>.
 Some of the boards do properly enter "Boot Mode" which is done by connecting <code>GPIO0</code> to ground. This can easily be done by using a jumper wire from a through hole header that exposes both <code>GPIO0</code> and ground and pressing a reset button immediately below it. Alternatively this can be achieved by using a wire pressed to the bottom right most module pin and the metal RF shield on top of the module while connecting USB to power on.
@@ Line 275: / Line 277: @@
 Once launched, any running code may be halted, entering <code>repl</code> will give an interactive Micropython prompt. Entering <code>Ctrl+D</code> will do a soft reset and any code configured to automatically start such as <code>main.py</code> will then run and you will see any output such as from <code>print()</code> in the terminal.
 == IMU ==