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Author: frank
Raspberry Pi Compute Modules Choices
#1 Choice For 195$US reTerminal CM4104032 5-inch touch screen https://www.seeedstudio.com/ReTerminal-with-CM4-p-4904.html - includes Raspberry Pi Compute Module 4GB - includes eMMC storage 32GB - #2 Choice For 195$US Generic Raspberry Pi CM4104032 (65$) https://www.seeedstudio.com/Raspberry-Pi-Compute-Module-CM4104032-p-4722.html - includes...
Add your script on startup for Raspberry Pi 3/4
$ sudo nano /etc/supervisor/supervisord.conf ; Water Sensor [program:Water_Sensor] command= python /home/pi/water-sensor.py autostart=true autorestart=true Start $ sudo supervisorctl start Water_Sensor Stop $ sudo supervisorctl stop Water_Sensor
Where to buy Raspberry Pi 4
Cytron.io https://www.cytron.io/p-raspberry-pi-4-model-b-4gb CanaKit https://www.canakit.com/raspberry-pi-4-4gb.html
Raspberry Pi 4 is so fragile
https://raspberrypi.stackexchange.com/questions/135963/did-i-busted-my-pi-4-failed-to-open-device-sdcard-cmd-371a0010-status-1fff0
WPML + Contact Form 7 + Secondary language BUG
Problem Solution (1) Enable AJAX support in WPML (2) Use in-url subdirectories like/fr instead of query strings in WPML Solutions not working https://wpml.org/de/forums/topic/get_rest_url-returns-wrong-url/ 1 add_filter( 'rest_url', 'wpml_permalink_filter' ); Adding this in function.php did...
syntax error, unexpected 'use' (T_USE), expecting '{'
Problem syntax error, unexpected 'use' (T_USE), expecting '{' Code function fetchSumWithExplain($schemaTableName, $tag) use ($app) { $generateExplain = function ($sql, $header) use ($app) { $query = $app->db->prepare($sql); $query->execute(); $sqlData = $query->fetchAll(PDO::FETCH_ASSOC); $retVal = array_merge(array($header),$sqlData); return...
Fix hackrf_open() failed: HackRF not found (-5)
pi@raspberrypi:~ $ hackrf_spiflash -w ~/Downloads/hackrf-2021.03.1/firmware-bin/hackrf_one_usb.bin File size 35444 bytes. hackrf_open() failed: HackRF not found (-5) Solution Use sudo before the command: pi@raspberrypi:~ $ sudo hackrf_spiflash -w ~/Downloads/hackrf-2021.03.1/firmware-bin/hackrf_one_usb.bin File size 35444 bytes. Erasing SPI flash....
letsencrypt stop working - Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org
root@ns1:/etc/cron.daily# ./letsencrypt Saving debug log to /var/log/letsencrypt/letsencrypt.log------------------------------------------------------------------------------- Processing /etc/letsencrypt/renewal/quebeclabradoodle.com.conf ------------------------------------------------------------------------------- Cert is due for renewal, auto-renewing... Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org Attempting to renew cert from /etc/letsencrypt/renewal/quebeclabradoodle.com.conf produced an unexpected error: HTTPSConnectionPool(host='acme-v01.api.letsencrypt.org', port=443):...
Render sub template inside a existing slim template (canonical or embedded templates)
Solution $this->fetch('template.phtml', ["variable_name"=>$some_value, ...]) Example
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