Differences

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--- arduino:arduino_without_a_bootloader [2021/04/22 00:56] – [Case 1: Uno or Nano with USBtinyISP] mithat
+++ arduino:arduino_without_a_bootloader [2022/05/30 05:46] (current) – [Case 2: Pro Mini 5V/16MHz with USBtinyISP] mithat
@@ Line 69: / Line 69: @@
 ==== Case 2: Pro Mini 5V/16MHz with USBtinyISP ====
+<WRAP center round info 60%>
-<WRAP center round important 60%>
+Tested.
-I have not tested this case yet.
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@@ Line 112: / Line 111: @@
 <WRAP center round important 80%>
-**Be careful!**
+**Make sure your USBtinyISP level shifts the I/O before attempting this method.**
-Version 1 of the Adafruit USBtinyISP has a jumper that disconnects the internal VCC from the programming headers, but it does //not// level-shift the I/O.
-All the thrid-party USBtinyISP clones I've seen have the VCC jumper as well as the needed circuitry to level shift the I/O. But it's entirely likely that there are some old or bargain-basement versions that don't.
-Make sure your USBtinyISP level shifts the I/O before attempting this approach.
+Version 1 of the Adafruit USBtinyISP has a jumper that disconnects the internal VCC from the programming headers, but it does //not// level-shift the I/O. All the thrid-party USBtinyISP clones I've encountered have the VCC jumper as well as the needed circuitry to level shift the I/O. But it's entirely likely that there are some that don't.
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