Errata
The errata list is a list of errors and their corrections that were found after the product was released.
The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.
Color Key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update
Version | Location | Description | Submitted by | Date submitted |
---|---|---|---|---|
There was a typo few paragraphs before "Figure 16-3. A web interface to GPIO" in Chapter 16. | It said - |
Ming Su | May 25, 2021 | |
Printed | Page 223 middle |
I received feedback for 8.1 Installing OpenCV to use: |
Joel Nelson Holyoak | Jul 22, 2021 |
Printed | Page 223-224 pg 223 Installing packages to run OpenCV, pg 224 top of page |
When you install all the packages listed on pg 223 and then try to get Computer Vision going with import cv2 on pg 224 (top), you get a libcblas.so.3 error (it is missing). |
Anonymous | Oct 06, 2021 |
Printed | Page 244 Solution -> 4th line |
When enabling Raspberry I2C bus, the book text says "You are then prompted to restart." That was not the case with my board, and by looking at some forums I was alone with this issue. |
Juha-Pekka Repo | Mar 19, 2021 |
Printed | Page 444 Before the code example ch_14_oled_clock.py |
The book instructs to download and install Adafruit_Python_SSD1306 library. That is OK but in my case not enough. I also needed to install Adafruit_BBIO library. Without that the example didn't work. So the following installation command should be added: |
Juha-Pekka Repo | Mar 19, 2021 |
Printed | Page 527 Figure 17-32 |
For figure 17-32, the Sonoff_3 is misspelled sonoof_3. This does not really change anything, it's very minor. |
Pierre Rochefort | Apr 17, 2021 |