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--- using_zero_with_ssd1306_based_lcd_and_spi [2026/08/24 21:08] – walkeradmin
+++ using_zero_with_ssd1306_based_lcd_and_spi [2026/08/25 18:23] (current) – [Test Code] walkeradmin
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+====== Using Zero with ssd1306 Based LCD and SPI ======
+<color #db5f0b>Jul 2026</color>
+\\
+\\
 <color #ed1c24>***** THIS PAGE IS VERY MUCH WIP - PLEASE COME BACK LATER *****</color>
+\\
+\\
+{{ :ws-rp2040-01.jpg?100 |}}
+----
+===== Introduction =====
+\\
 The main difference between the driver we will use here, and the driver we used on the Pico is:
-  * The GPIO pins you pass into the driver
+  * The GPIO pins you pass into the driver.
-  * The SPI bus number (Zero uses SPI0 by default)
+  * The SPI bus number (Zero uses SPI0 by default).
 The Pico we used SPI bus 1
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 On the Zero, the SPI bus 1 pins are not exposed, so it cannot be used.
+\\
+\\
+----
+==== The Wiring ====
+\\
+The wiring for the Zero is exactly the same as for the Pico, unfortunately there are two slight differences.
+  * 1. The GPIO Pins are different.
+  * 2. The Pico uses SPI1 and the Zero uses SPI0
+See the wiring below:
+\\
+\\
+{{ :waveshare-sp-lcd-wiring.png?700 |}}
+\\
+Once you have wired up your LCD, we can move on to the software.
+\\
+\\
+----
+==== The Driver ====
+\\
+You can download the driver here: {{ :ssd_1306_zero.zip |}} you have to upload the driver to the \lib folder.
+\\
+\\
+I am not going to talk about the driver because there isn't anything in there we need to change.
+\\
+\\
+----
+==== Test Code ====
+\\
+All this test code does is to print 8 lines of text with sequential numbers after them, the numbers keep incrementing one at a time. The test code is designed to ensure the LCD is working fine, not to provide any real functionality, that will be up to you once you get your LCD working.
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+\\