{"uid":"cap_NYlAT8ouM_MroRX-5wW39","slug":"ne555-timer-calculator-95651021","name":"NE555 Timer Calculator","description":"555 timer calculator: astable frequency, period and duty cycle from R1, R2 and C, or monostable pulse width from R and C.","url":"https://electronics-calc.x402tookit.com/ne555-timer?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["mode","c"],"properties":{"c":{"type":"string","description":"Timing capacitor in farads, e.g. 10u"},"r1":{"type":"string","description":"R1 ohms (astable) or R (monostable)"},"r2":{"type":"string","description":"R2 ohms (astable only)"},"mode":{"type":"string","description":"astable or monostable"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"asOf":{"type":["null","string"]},"source":{"type":["null","string"]},"periodS":{"type":["null","number"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"lowTimeS":{"type":["null","number"]},"formatted":{"type":["null","object"],"properties":{"period":{"type":["null","string"]},"frequency":{"type":["null","string"]}}},"highTimeS":{"type":["null","number"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"frequencyHz":{"type":["null","number"]},"dutyCyclePct":{"type":["null","number"]}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm__kRcpTgaqcCYUU4niB6zA","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates astable oscillator frequency, period, duty cycle, high/low times, or monostable pulse width for an NE555 timer circuit given resistor and capacitor values.","exampleAgentPrompt":"Calculate the astable 555 timer frequency and duty cycle for R1 = 10k ohms, R2 = 47k ohms, and C = 10 microfarads — give me the frequency, period, and duty cycle.","exampleUseCases":[{"title":"LED blinker circuit design","prompt":"I'm building a 555 astable circuit to blink an LED at about 2 Hz. R1 is 1k ohms, R2 is 47k ohms, and C is 10 microfarads — what frequency, duty cycle, and high/low times will I get?"},{"title":"Monostable one-shot pulse timing","prompt":"I need to know the pulse width for a 555 monostable circuit with a 100k ohm resistor and a 1 microfarad capacitor. Can you calculate that for me?"},{"title":"PWM oscillator frequency verification","prompt":"I designed a 555 astable oscillator with R1 = 4.7k, R2 = 4.7k, and C = 100 nanofarads. What's the output frequency and duty cycle so I can verify it matches my target 1kHz square wave?"}],"resultDescription":"Returns numeric values for frequency in Hz, period in seconds, high time and low time in seconds (astable mode), duty cycle percentage (astable mode) or pulse width in seconds (monostable mode), along with human-readable formatted strings for frequency and period, plus a summary text, disclaimer, and any degraded/warning flags.","failureModes":["Missing required 'mode' or 'c' parameters returns an error","Missing R1 when required for the chosen mode","Invalid or unparseable unit strings (e.g. malformed '10u') may cause errors","R2 provided for monostable mode may be ignored or flagged","Extreme component values outside practical ranges may return degraded results with warnings"],"whenToPreferThis":"Choose this endpoint when you need to compute 555 timer circuit parameters (frequency, period, duty cycle, pulse width) from component values. It handles both astable and monostable 555 configurations with formatted, human-readable output. Prefer it over generic formula evaluation when you specifically have an NE555 circuit and want validated, electronics-aware results with unit parsing (e.g. '10u' for microfarads).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-25T18:43:28.268Z","isFirstParty":false,"canonicalSlug":"ne555-timer-calculator-95651021"}