Tactile pushbutton switch 6x6x8mm 4-pin through-hole pack of 10 India
Sachin Soni
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6 x 6 x 8mm Tactile Pushbutton – Black (Pack of 10)

The go-to tactile pushbutton switch for Indian makers and students — this 6×6×8mm, 4-pin, normally-open momentary switch fits standard breadboards perfectly and delivers crisp, consistent tactile feedback. Rated 50mA at 12V DC with a 300,000-cycle life. Pack of 10 — enough for a full semester of projects.

✅ 6×6×8mm through-hole, 4-pin — fits standard breadboards and PCBs
✅ Normally open (NO), momentary action — ideal for Arduino & ESP32 input
✅ 50mA / 12V DC rated — 300,000 cycle mechanical life
✅ Round actuator, crisp tactile click — consistent feel across the pack
✅ Best price in India — only at techiesms

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Active buzzer module front view showing 3-pin interface for Arduino India
Sachin Soni
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Active Buzzer Module (3.3V–5V) for Arduino & Microcontrollers

The active buzzer module is the fastest way to add sound to any maker project in India — just wire three pins, write one line of code, and you have a loud, clear beep. Compatible with Arduino, ESP32, STM32, and Raspberry Pi Pico with no extra components needed.

✅ 3.3V–5V dual-voltage compatibility — works with all popular boards
✅ 85dB output at 10cm — clearly audible in workshops and classrooms
✅ 2500Hz fixed-frequency built-in oscillator — no tone code required
✅ Compact 3-pin interface — VCC, GND, Signal; plug-and-play simplicity
✅ Best price in India — only at techiesms

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DC DC boost converter module 5V 8V 9V 12V
Sachin Soni
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1.5A Mini DC-DC Boost Converter Module (5V/8V/9V/12V Adjustable)

Compact and efficient, this 1.5A Mini DC-DC Boost Converter steps up any DC input (from 2.5V) to your choice of 5V, 8V, 9V, or 12V — perfect for lithium battery-powered Arduino, ESP32, and IoT builds across India. Set output voltage once with a quick solder, and it stays locked.

✅ 4 selectable output voltages: 5V / 8V / 9V / 12V via solder pads
✅ Wide input range: 2.5V to (VOUT − 0.5V) — works with LiPo, AA cells, USB
✅ Onboard LED indicator — disable by pad cut for ultra-low idle (<1 mA)
✅ Ultra-compact: 22 × 11 × 3.6 mm, 2.35 g — fits any enclosure
✅ Best price in India — only at techiesms

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ESP32 S3 board N16R8 16MB flash 8MB PSRAM DevKitM-1 India
Sachin Soni
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ESP32 S3 DevKitM-1 (N16R8) Development Board

The most powerful ESP32 S3 board available in India — 16MB Flash and 8MB Octal PSRAM give you real memory headroom for AIoT, LVGL UIs, OTA updates, and edge AI inference. Dual-core 240 MHz, Wi-Fi + Bluetooth 5, JTAG debugging, and RGB LED ready to go out of the box.

✅ 16MB Flash + 8MB Octal PSRAM — maximum memory for complex projects
✅ Dual-core Xtensa LX7 @ 240 MHz with AI vector acceleration
✅ Wi-Fi 802.11 b/g/n + Bluetooth 5 LE onboard
✅ JTAG debugging + RGB LED + Boot/Reset buttons included
✅ Best price in India — only at techiesms

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