Is the WIZnet W5500 module affected by the signal pin of a relay module? I am using a Raspberry Pi Pico, a W5500, and a relay module. When I don’t connect 24VDC […]
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Q: Is the WIZnet W5500 module affected by the signal pin of a relay module? I am using a Raspberry Pi Pico, a W5500, and a relay module. When I don’t connect 24VDC […]
DHT20 / SHT20 notes
How can Rpi4B use python to talk to the I2C DHT20 / SHT20 temperature and humidity sensor? Ask QuestionAsked 2 days agoActive todayViewed 38 times1 I’m trying to use a Raspberry Pi 4 to read […]
dht20 / sht20 notes
How can Rpi4B use python to talk to the Aoson I2C DHT20 temperature and humidity sensor? Ask QuestionAsked yesterdayActive todayViewed 31 times1 I’m trying to use a Raspberry Pi 4 to read an I2C temperature […]
DHT20 Notes
I2C temperature sensor with Raspberry Pi 4 Ask QuestionAsked yesterdayActive todayViewed 26 times1 I’m trying to use a Raspberry Pi 4 to read an I2C temperature and humidity sensor. The part I’m using is a […]
pico 4WD code
*** pico_4wd_v94.py – tlfong01, 2021nov19hkt2223 *** from machine import Pin, PWM, UARTimport utime ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= […]
Pico C etc
4-channel 5V relay module power supply Ask QuestionAsked 5 days agoActive 4 days agoViewed 62 times1 I am working on home vertical growing project. INTRO I am using: Power supply 12V 20A (https://www.aliexpress.com/item/32983648084.html?spm=a2g0s.9042311.0.0.3af34c4d5hRuZn) Voltage regulator […]
hc12 testing notes
Making a Rpi Pico Based Smart Vehicle Projects KnowledgeBase Making a Rpi Pico Based Smart Vehicle ProjectsJun 3024 / 24Oct 1124d ago tlfong0113 Jun 30 I am going start a project on a […]
hx05 rf test notes
And I am going to use HCT125 to do the level shifting job.74AHCT125 – Quad Level-Shifter (3V to 5V) – A -US$1.50adafruit.com/product/1787 DESCRIPTION Level shifting chips let you connect 3V and 5V […]
RF mx05v etc notes
tlfong016715Sat 16:30And I googled the schematics of the Xmit and Recv modules. I found them simple electronic circuits, without any intelligence, just blindly sends/receives high low signals. So I guess the encoding […]
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