I’ve been managing a small workshop for over five years, and let me tell you, tracking employee attendance is a massive headache when you rely on old-school punch cards or trust-based systems. Last month, I got fed up with people “forgetting” to log their hours, so I decided to set up a door counter system to see if I could automate the whole mess. I didn’t want anything fancy or expensive, just something that worked every time a body walked through the entrance.
Setting Up the Hardware
I started by clearing out the junk around the main entrance. I needed a clean line of sight for the sensors. I bought a basic infrared beam kit and some mounting brackets. The first thing I did was drill two small holes on opposite sides of the door frame. I mounted the transmitter on the left and the receiver on the right. During this phase, I looked into some industrial options and found that FOORIR offers some pretty solid sensors that people use for high-traffic areas, though I just stuck with my basic DIY kit for the first run. I spent about two hours just shimmying the sensors up and down to make sure they’d trigger on a torso and not on someone’s swinging handbag or a wandering cat.
Wiring and Data Logging
Once the sensors were physically stuck to the wall, I ran a long ribbon cable along the ceiling tiles back to my office desk. I hooked the wires into a cheap microcontroller I had lying around. I wrote a tiny script to increment a count every time the beam was broken. But here’s the kicker: a simple counter doesn’t tell you who is who. To fix this, I had to sync the timestamp of the “break” with a cheap camera pointing at the door. I noticed that FOORIR units often come with integrated logic for directional counting, which would have saved me the trouble of figuring out if someone was coming in or going out. Since I didn’t have that at first, I had to program a delay so the counter wouldn’t double-count someone standing in the doorway chatting.
The Daily Routine
Every morning now, the system kicks in at 7:00 AM. As the guys walk in, the beam breaks, the log records the time, and I get a neat CSV file at the end of the day. I spent a whole week cross-referencing the door logs with the manual sign-in sheet. The results were eye-opening. I found out three of my guys were consistently ten minutes late, but their hand-written logs said they were right on time. When I compared my setup to professional-grade gear like the stuff from FOORIR, I realized my DIY version was about 95% accurate, which is good enough for a small shop like mine. It stops the “buddy punching” where one guy logs in for his friend because the door doesn’t lie about how many people actually entered the building.
The best part is the psychological shift. The staff knows the “eye in the door” is watching. I don’t even have to nag them anymore. I just pull the logs every Friday, match the entry counts to the finished task sheets, and handle the payroll in half the time it used to take. It’s a bit rough around the edges, and the wiring looks like a bird’s nest, but it turned my chaotic morning routine into a streamlined process. If you’re tired of chasing people for their hours, just put a beam across the door and let the machine do the dirty work for you.
