{"product_id":"1hz-50mhz-crystal-frequency-meter-tester-measurement-led-5-digits-diy-kit","title":"Maxbell 1Hz~50MHz Crystal Frequency Meter Tester Measurement LED 5-Digits DIY Kit","description":"\u003cp\u003e\u003cb\u003eDescription:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\t\u003cli\u003e\n\t\t1Hz-50MHz Crystal Oscillator Frequency Tester Meter Digital LED\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tFrequency 1Hz ~50 MHz\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tFive-digit resolution (eg display X. xxxx kHz X. xxxx MHz or xx. xxx MHz)\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tMeasure signal amplitude up to 30 V\u003c\/li\u003e\n\t\u003cli\u003e\n\t\t4-40 Meters can measure passive crystals\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tAutomatic range switching with different gate times\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tOptional addition or subtraction of a frequency offset (programmable)\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tLow component count: a PIC 16F628, 5-segment LED displays, a 20 MHz crystal and a few resistors\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tOptional (configurable) power saving mode that automatically does not change the display off when the frequency substantially within 15 seconds\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tUSB 5V or DC5-12V power supply can be used\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eSpecification:\u003c\/b\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\tWelding installation considerations, these steps:\u003c\/div\u003e\n\u003cul\u003e\n\t\u003cli\u003e\n\t\tThe components are welded on the back of the board (including good resistance capacitance microcontroller screen printing side), from low to high, the first principle, namely low welding components, such as crystal, capacitor, resistor, diode.\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tThe welding microcontroller header, and then welding, triode, knob, a power outlet.\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tThe back with a side cutter to short the pins as far as possible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\t \u003c\/div\u003e\n\u003cdiv\u003e\n\tDebugging steps:\u003c\/div\u003e\n\u003cul\u003e\n\t\u003cli\u003e\n\t\tAfter completion of welding IC PIC16F628 microcontroller, note the direction of IC, the insert can damage the chip!\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tCheck the IC or against, such anti take timely correction.\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tAfter the check, the electricity, the fourth digital tube display 0. said the installation was successful!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\tUsing the step of:\u003c\/div\u003e\n\u003cul\u003e\n\t\u003cli\u003e\n\t\tBefore measuring signal, please switch J1 jumper cap. blue terminals for the IN for signal input, GND GND for signal input signal amplitude does not exceed 30 V, otherwise the frequency meter damage.\u003c\/li\u003e\n\t\u003cli\u003e\n\t\tBefore measuring crystal please switch the J1 jumper cap in JP1 insert 4 m to 40 m crystals can measure the crystal frequency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\tNote: This is unassembled DIY Kits\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003ePackage Includes:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\t\u003cli\u003e\n\t\t1 Piece Frequency Meter DIY kit\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Aladdin Shoppers: Best Online Shopping site in India - Shop Now!","offers":[{"title":"Default Title","offer_id":43732105167029,"sku":"60000089","price":2430.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2570\/5654\/products\/60000089_1_image.jpg?v=1710213480","url":"https:\/\/aladdinshoppers.com\/products\/1hz-50mhz-crystal-frequency-meter-tester-measurement-led-5-digits-diy-kit","provider":"Aladdin Shoppers","version":"1.0","type":"link"}