tekNotes
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Raspberry pi Pose Estimation
Project hii ni kifaa cha kusaidia ufanisi wa mazoezi kwa kutumia teknolojia ya Computer Vision. Lengo lilikua kuunda kifaa cha gharama nafuu na kinachoweza kubebeka kinachoweza kufuatilia mkao na utendaji wa mazoezi ya msingi kama vile push-ups. Mfumo unategemea jukwaa la Raspberry Pi kuendesha modeli nyepesi ya Pose Estimation (MediaPipe), ambayo hutambua na kufuatilia viungo muhimu vya mwili (keypoints) kwa wakati halisi. Kwa kukokotoa pembe za kijiometri (geometric angles) kati ya viungo hivi (kama vile mkono, kiwiko na bega), mfumo huweza kutoa maoni ya papo hapo.
Kutoka ENIAC hadi Kompyuta za kiganjani
Hebu fikiria hivi - kompyuta yako ya sasa ina nguvu zaidi kuliko kompyuta zote za NASA zilizotuma waru kwenda mwezini mwaka 1969! Safari ya teknolojia ya kompyuta ni hadithi ya kushangaza sana. Twende pamoja katika safari hii ya miaka 80!
Qualcomm kuinunua Arduino?
Katika ulimwengu wa teknolojia unaobadilika kwa kasi, habari za ununuzi wa makampuni makubwa huwa zinaibua maswali mengi. Hivi karibuni, gwiji wa chipu za kompyuta, Qualcomm, ametangaza kununua kampuni mashuhuri ya Arduino. Kwa wale wanaofahamu Arduino, hii ni habari kubwa! Lakini je, ununuzi huu una maana gani kwa makers na watengenezaji programu, na hata watumiaji wa kawaida? Hebu tuchunguze kwa undani
Universal IR remote
We've all been there. The average living room has 4-7 remote controls, each jealously guarding its own device. Lose one, and suddenly you can't adjust the volume. Dead batteries? Hope you didn't need to change the input tonight. What if your phone—the device that's always charged and always with you—could control everything?
Jinsi IR Remotes Zinavofanya Kazi
Umewahi jiuliza ni nini haswa kinafanyika unapobonyeza ile remote yako? Yaani, kitu gani kinafanya TV ijue umebonyeza "volume up" na sio "power off"? Leo tutazungumza kuhusu hii technology ambayo tumekuwa tukitumia kwa miaka mingi - IR remotes!
Connecting 16x2 LCD to Arduino
The 16x2 LCD display might seem intimidating with its 16 pins, but once you understand what each connection does and why it's needed, it becomes surprisingly straightforward. Let's build this connection step by step, understanding the logic behind each wire.
Delay vs Millis
Ever tried to make your Arduino do two things at once? Maybe blink an LED while reading a sensor, or respond to a button press while running a timed sequence? If you've been using delay(), you've probably hit the wall.
Fling - Not all who wander are lost
Fling revolutionizes mobile communication by creating an infrastructure-independent messaging and navigation system that transforms smartphones into sovereign communication devices capable of operating without cellular towers or internet connectivity. By integrating LoRa radio technology with smartphones through a compact companion device (The Ranger Node), Fling establishes a resilient mesh network where each node communicates directly up to 15km, with messages routing through intermediate devices to extend range indefinitely. NFC-based pairing eliminates setup complexity—users tap devices together to instantly exchange cryptographic keys and establish secure channels. Unlike conventional messengers that fail during natural disasters, in remote wilderness, or amid infrastructure failures, Fling maintains full functionality anywhere on Earth, providing text messaging, real-time location sharing, compass-based navigation to contacts, and offline waypoint tracking for backcountry navigation
RC cybertruck
An arduino RC cybertruck controller by a PS4 controller
Pomodoro Timer: My Arduino based focus tool
Pomodoro Technique, a time management tool that involves splitting work tasks into 25-minute intervals, known as pomodoros, with breaks scheduled in between each interval.
My TOP 4 Arduino Boards
With so many Arduino boards out there, picking the right one can be confusing. In this post, I break down my top 4 go-to boards: the reliable Uno, the powerful Uno R4, the wireless ESP32, and the sensor-packed Nano BLE Sense.
Redefining Alarm Clocks
Most alarms are designed to wake you up at a fixed time—regardless of what stage of sleep you're in. This can leave you feeling groggy and exhausted, even after a full night's rest. In this article, I share how I built a smarter alarm system that uses actigraphy to track sleep patterns and machine learning to find the perfect time to wake you up—when your body is ready.
My 3D Fabrication Workflow
From finding ideas to printing the final product, Breaking down the softwares I use (Rhino 3D for design, OrcaSlicer for slicing).
Build your own Arduino Traffic light system
Learn how to create a fully functional traffic light system using Arduino. This step-by-step guide covers hardware setup, circuit diagrams, code explanation, and potential extensions for your project.