MQ-5 Gas Detection Alarm Circuit Sound and Light Electronic Teaching Training DIY Parts Production Sensor Kit
Direct purchase from the factory 
Tuta Solutio
Donum Gratis
Politica Missilis
Politica ReditusDonum Gratis
Salve ad Roymall, tuum destinatum ad dona premium. Gratias agimus pro tuo auxilio, et offerimus donum gratis cum omni emptione. Paratus ad explorandum nostram collectionem? Perlege nostra selectio, fac ordinationem tuam, et expecta donum tuum gratis cum emptione.Politica Missilis
Processamus ordinationes intra 2 dies.Norma missilis tempus est 5-7 dies laboris.Tempus missilis potest variari secundum destinationem.1. Politica Reditus
Accipimus solum res emptas ex roymall.com. Donum gratis non potest reddi. Res debet esse non usata et in originali packaging.Processamus reditus intra 3-5 dies laboris post receptionem.Res personalisatae non possunt reddi.Contacta nos: service@roymall.com vel Whatsapp: +86193598494712.Politica Pecuniae Redditae
Accipies plenam pecuniam redditam post receptionem et inspectionem. Sumptus missilis non redditur.Contacta nos: service@roymall.com vel Whatsapp: +8619359849471Product name: Gas detection alarm circuit
Supply voltage: DC5V
Appearance size: 60*30mm
Sensor: MQ-5
NOTE: This kit requires self-assembly.
Package includes:
1 x DIY Kit
| Components List | ||
| Component name | Component position | Quantity |
| 1/4W Resistor 5.1R | R1 | 1 |
| 1/4W Resistor 1K | R2, R5~R7,R9, R10 | 6 |
| 1/4W Resistor 10K | R3, R4 | 2 |
| 1/4W Resistor 330R | R8 | 1 |
| 1/4W resistor 220K | IC4 | 1 |
| Ceramic capacitor 104 | C1,C2 | 2 |
| 3MM yellow LED | D1, D2 | 2 |
| Transistor S9012 | Q1 | 1 |
| Trivalent chromium S9013 | Q2 | 1 |
| In-line chip LM393 | U1 | 1 |
| Voice chip C002 | IC4 | 1 |
| 5V Active Buzzer | B1 | 1 |
| Straight pin header 4P | P1 | 1 |
| Double female Dupont cable 2P | P1 | 1 |
| MQ-5 gas sensor | MQ-5 | 1 |
| PCB board | 1 | |
Principle:
The gas sensing material used in the MQ-5 gas sensor is tin dioxide with low conductivity in clean air. When there is flammable gas in the environment where the sensor is located, the conductivity of the sensor increases with the increase in the concentration of flammable gas in the air. big. External oscillator resistance 100K~240Ku03a9 (the larger the resistance, the slower the sound speed), the buzzer can be driven to sound after power-on. Pin 1 is grounded, pin 2 is output, pin 3 is the sound terminal, pin 4 is connected to the positive pole of the power supply, and pins 5 and 6 are connected to the shock resistance.
