In this article we will fetch a web page using a Raspberry Pi W running micropython, we will display the source code of the web page in the REPL window You need to download the latest micropython firmware, you can get this from the following…
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Micropython
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The Pico-RTC-DS3231 is an RTC expansion module specialized for Raspberry Pi Pico. It incorporates high precision RTC chip DS3231 and uses an I2C bus for communication. More external sensors are allowed to be connected thanks to the stackable design. DS3231 Information The DS3231 is…
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In this article we connect a TM1637 display module to a Raspberry Pi Pico and we will have some examples in Micropython Module Information A common display module that you can buy on the internet contain the Tm1638 driver chip, I was interested in this one…
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In this tutorial we will create an I2C scanner for the Raspberry Pi PIco. Sometimes you get a sensor and are not sure the I2C address or you may have a sensor library that does not work for some reason and this may be because …
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In this article we will display a digital clock using a Pico Scroll Pack Getting started The labels on the underside of Pico Scroll Pack will show you which way round to plug it into your Pico – just match up the USB port with…
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ArticlesMicropython
A PCF8574 expander example in micropython using a Raspberry Pi Pico
by rp2040guy71In this example we connect a PCF8574 expander to a Raspberry Pi Pico Description This 8-bit input/output (I/O) expander for the two-line bidirectional bus (I2C) is designed for 2.5-V to 6-V VCC operation. The PCF8574 device provides general-purpose remote I/O expansion for most microcontroller families…