Topics
21 Views
2 Replies
Hi,can use 9V battery directly supply voltage to the sn-mq9 sensor? or have to use voltage regulator to step down to 5v? FAQSEN0134SEO FAQAftersales FAQ
JaneYu 2026-02-14 08:57:04 Trending
- 1 IR Kit For Arduino Model: DFR0107
- 2 Arduino library for DFPlayer Mini
- 3 DFPlayer Mini - Really low volume, almost non-existent
- 4 DFPlayer - How to avoid pauses beteween tracks
- 5 New to DFPlayer (detect when audio clip has finished playing & loud pop upon power on/down)
- 6 DFPlayer mini + gets stuck in loop when it shouldnt.
- 7 Very disappointing support for TEL0117 LoRa MESH Radio Module - 868MHz
- 8 Wiring Connections to the DFPlayer Mini MP3
- 9 How do I control high power leds with arduino?
- 10 Beetle ESP32 C3 USB connection issue