Aiming at the analog signal being converted into the digital with a higher precision. a method to improve the analog-to-digital converter (ADC) resolution is proposed and described. Based on the microcomputer PIC18F45K80 in which the internal ADC modules are embedded. a circuit is designed for doubling the resolution of ADC. https://safeersappliancers.shop/product-category/newworld-vision-90g-freestanding-b-a-rated-gas-range-cooker-black-90cm-444444209/