https://bitwizard.nl/wiki/index.php?action=history&feed=atom&title=STM32_development_board 2026-04-05T19:01:43Z Revision history for this page on the wiki MediaWiki 1.35.6 https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4987&oldid=prev 2025-11-17T13:33:50Z

<p><span dir="auto"><span class="autocomment">introduction</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:33, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 9:</td> <td colspan="2" class="diff-lineno">Line 9:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>For those who want to design an add-on board, the connector positions are given in mil. Mil is 0.001 inch and the postions are referenced on the bottom left corner of the PCB. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>For those who want to design an add-on board, the connector positions are given in mil. Mil is 0.001 inch and the postions are referenced on the bottom left corner of the PCB. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>The mounting holes are 3.0 mm and located at 3,3 mm, 3,47mm, 47,3mm and 47,47mm. The PCB is 50x50 mm.</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>The mounting holes are 3.0 mm and located at 3,3 mm, 3,47mm, 47,3mm and 47,47mm. The PCB is 50x50 mm.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>A "technical drawing" of the board is available here: https://bitwizard.nl/wiki/index.php/File:Stm32_devel_bordje.png</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>== pinout ==</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>== pinout ==</div></td> </tr> </table>

Rew https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4985&oldid=prev 2025-11-17T12:10:12Z

<p><span dir="auto"><span class="autocomment">SV2</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:10, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 57:</td> <td colspan="2" class="diff-lineno">Line 57:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>General purpose IO connector. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>General purpose IO connector. </div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>(not all pin numbers are typed out fully). </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>* 1 GND</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>* 1 GND</div></td> </tr> </table>

Rew https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4984&oldid=prev 2025-11-17T12:10:00Z

<p><span dir="auto"><span class="autocomment">I2C2</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:10, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 39:</td> <td colspan="2" class="diff-lineno">Line 39:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>=== I2C2 === </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>=== I2C2 === </div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>(not all pin numbers are typed out fully). </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>* 1 GND</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>* 1 GND</div></td> </tr> </table>

Rew https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4983&oldid=prev 2025-11-17T12:09:55Z

<p><span dir="auto"><span class="autocomment">I2C1</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:09, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 30:</td> <td colspan="2" class="diff-lineno">Line 30:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>=== I2C1 === </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>=== I2C1 === </div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>(not all pin numbers are typed out fully). </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>* 1 GND</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>* 1 GND</div></td> </tr> </table>

Rew https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4982&oldid=prev 2025-11-17T12:09:47Z

<p><span dir="auto"><span class="autocomment">UART</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:09, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 21:</td> <td colspan="2" class="diff-lineno">Line 21:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>=== UART ===</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>=== UART ===</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>(not all pin numbers are typed out fully). </div></td> <td colspan="2" class="diff-empty diff-side-added"></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>* 1 GND</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>* 1 GND</div></td> </tr> </table>

Rew https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4981&oldid=prev 2025-11-17T12:02:03Z

<p><span dir="auto"><span class="autocomment">introduction</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 12:02, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>It differs from the Nucleo in that it does not try to break out EVERY pin of the chip, just a useful subset. Some pins that have I2C, SPI, or UART functionality are broken out on connectors specifically tailored for that use case. Many other GPIO pins are broken out on standard 2x10 headers. </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>It differs from the Nucleo in that it does not try to break out EVERY pin of the chip, just a useful subset. Some pins that have I2C, SPI, or UART functionality are broken out on connectors specifically tailored for that use case. Many other GPIO pins are broken out on standard 2x10 headers. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The board is available for purchase "on request". It cannot compete with the ST Nucleo boards (on price). But if you want one shoot us an Email and we'll sell you one (or more).<del class="diffchange diffchange-inline"> </del></div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The board is available for purchase "on request". It cannot compete with the ST Nucleo boards (on price). But if you want one shoot us an Email and we'll sell you one (or more).</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>For those who want to design an add-on board, the connector positions are given in mil. Mil is 0.001 inch and the postions are referenced on the bottom left corner of the PCB. </div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The mounting holes are 3.0 mm and located at 3,3 mm, 3,47mm, 47,3mm and 47,47mm. The PCB is 50x50 mm.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>== pinout ==</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>== pinout ==</div></td> </tr> </table>

Rew https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4980&oldid=prev 2025-11-17T11:44:34Z

<p><span dir="auto"><span class="autocomment">IO voltage</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:44, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 14:</td> <td colspan="2" class="diff-lineno">Line 14:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>The "VCCIO" voltage can be set with the jumper "5V/3.3V"</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>The "VCCIO" voltage can be set with the jumper "5V/3.3V"</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>Note that this is "power for the slave device", it does not imply that the outgoing signals will have a 5V level (that's always 3.3V), or that the pins are 5V tolerant.<del class="diffchange diffchange-inline"> </del></div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Note that this is "power for the slave device", it does not imply that the outgoing signals will have a 5V level (that's always 3.3V), or that the pins are 5V tolerant.</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Position of this connector: X 1850, Y 425 mil. (you may want to know this if you are designing an addon board that requires both 5V and 3.3V.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>=== UART ===</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>=== UART ===</div></td> </tr> </table>

Rew https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4979&oldid=prev 2025-11-17T11:34:34Z

<p><span dir="auto"><span class="autocomment">I2C1</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:34, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 34:</td> <td colspan="2" class="diff-lineno">Line 34:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>* 4 VCCIO</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>* 4 VCCIO</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Position of this connector: X 1475, Y 500 mil.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>=== I2C2 === </div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>=== I2C2 === </div></td> </tr> </table>

Rew https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4978&oldid=prev 2025-11-17T11:34:21Z

<p><span dir="auto"><span class="autocomment">I2C2</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:34, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 43:</td> <td colspan="2" class="diff-lineno">Line 43:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>* 4 VCCIO</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>* 4 VCCIO</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>Position of this connector: X <del class="diffchange diffchange-inline">450</del>, Y 300 mil.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Position of this connector: X <ins class="diffchange diffchange-inline">1475</ins>, Y 300 mil.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>=== SPI ===</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>=== SPI ===</div></td> </tr> </table>

Rew https://bitwizard.nl/wiki/index.php?title=STM32_development_board&diff=4977&oldid=prev 2025-11-17T11:33:52Z

<p><span dir="auto"><span class="autocomment">I2C2</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:33, 17 November 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 42:</td> <td colspan="2" class="diff-lineno">Line 42:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>* PB10 SCL</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>* PB10 SCL</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>* 4 VCCIO</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>* 4 VCCIO</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>Position of this connector: X 450, Y 300 mil.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>=== SPI ===</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>=== SPI ===</div></td> </tr> </table>

Rew