| Artist | : | How To Make a proximity sensor Using BC547 NPN transistor , IR LED , photo Diode and LED |
| Title | : | Spark Mind |
| Duration | : | 183 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | How To Make a proximity sensor Using BC547 NPN transistor , IR LED , photo Diode and LED |
| Title | : | Spark Mind |
| Duration | : | 183 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |