diff --git a/lib/bill-validator.js b/lib/bill-validator.js
new file mode 100644
index 000000000..b664b1db7
--- /dev/null
+++ b/lib/bill-validator.js
@@ -0,0 +1,26 @@
+const pickClass = ({ deviceType }, mock) => {
+  if (mock) {
+    switch (deviceType) {
+      case 'hcm2': return require('./mocks/hcm2/hcm2')
+      case 'gsr50': return require('./mocks/gsr50/gsr50')
+      default: return require('./mocks/id003')
+    }
+  }
+
+  switch (deviceType) {
+    case 'genmega': return require('./genmega/genmega-validator/genmega-validator')
+    case 'cashflowSc': return require('./mei/cashflow_sc')
+    case 'bnrAdvance': return require('./mei/bnr_advance')
+    case 'ccnet': return require('./ccnet/ccnet')
+    case 'hcm2': return require('./hcm2/hcm2')
+    case 'gsr50': return require('./gsr50/gsr50')
+    default: return require('./id003/id003')
+  }
+}
+
+const load = (deviceConfig, mock = false) => {
+  const validatorClass = pickClass(deviceConfig, mock)
+  return validatorClass.factory(deviceConfig)
+}
+
+module.exports = { load }
diff --git a/lib/brain.js b/lib/brain.js
index 82aa9c2ec..782a754fa 100644
--- a/lib/brain.js
+++ b/lib/brain.js
@@ -43,6 +43,7 @@ const { getLowestAmountPerRequirement, getAmountToHardLimit, getTriggered } = re
 const { ORDERED_REQUIREMENTS, REQUIREMENTS } = require('./compliance/triggers/consts')
 
 const printerLoader = require('./printer/loader')
+const billValidator = require('./bill-validator')
 const BigNumber = BN.klass
 
 let transitionTime
@@ -274,30 +275,8 @@ Brain.prototype.prunePending = function prunePending (txs) {
     .then(() => pendingTxs.length)
 }
 
-Brain.prototype.selectBillValidatorClass = function selectBillValidatorClass () {
-  const billValidator = this.rootConfig.billValidator.deviceType
-  if (commandLine.mockBillValidator) {
-    switch (billValidator) {
-      case 'hcm2': return require('./mocks/hcm2/hcm2')
-      case 'gsr50': return require('./mocks/gsr50/gsr50')
-      default: return require('./mocks/id003')
-    }
-  }
-
-  switch (billValidator) {
-    case 'genmega': return require('./genmega/genmega-validator/genmega-validator')
-    case 'cashflowSc': return require('./mei/cashflow_sc')
-    case 'bnrAdvance': return require('./mei/bnr_advance')
-    case 'ccnet': return require('./ccnet/ccnet')
-    case 'hcm2': return require('./hcm2/hcm2')
-    case 'gsr50': return require('./gsr50/gsr50')
-    default: return require('./id003/id003')
-  }
-}
-
 Brain.prototype.loadBillValidator = function loadBillValidator () {
-  const billValidatorClass = this.selectBillValidatorClass()
-  return billValidatorClass.factory(this.rootConfig.billValidator)
+  return billValidator.load(this.rootConfig.billValidator, !!commandLine.mockBillValidator)
 }
 
 Brain.prototype.billValidatorHasShutter = function billValidatorHasShutter () {
diff --git a/lib/hardware-testing/bill-validator.js b/lib/hardware-testing/bill-validator.js
new file mode 100644
index 000000000..0b844f01d
--- /dev/null
+++ b/lib/hardware-testing/bill-validator.js
@@ -0,0 +1,120 @@
+const { load } = require("../bill-validator")
+
+const DEVICE_CONFIG = {
+  deviceType: "cashflowSc",
+  rs232: {
+    device: "/dev/ttyUSB0",
+  },
+}
+
+const FIAT_CODE = 'EUR'
+
+const BOXES = {
+  numberOfCashboxes: 1,
+  cassettes: 0,
+  recyclers: 0,
+}
+
+const addEventListeners = (validator, reject, eventListenersToAdd) => {
+  const allEvents = [
+    'actionRequiredMaintenance',
+    'billsAccepted',
+    'billsRead',
+    'billsRejected',
+    'billsValid',
+    'cashSlotRemoveBills',
+    'disconnected',
+    'enabled',
+    'error',
+    'jam',
+    'leftoverBillsInCashSlot',
+    'stackerClosed',
+    'stackerOpen',
+    'standby',
+  ]
+
+  const handleUnexpected = eventName => (...eventArguments) => {
+    const error = new Error("Unexpected event received")
+    error.eventName = eventName
+    error.eventArguments = [...eventArguments]
+    reject(error)
+  }
+
+  allEvents.forEach(
+    ev => validator.on(ev, eventListenersToAdd[ev] ?? handleUnexpected)
+  )
+}
+
+const doFinally = validator => () => {
+  validator.removeAllListeners()
+  validator.disable()
+}
+
+const testEnable = validator => () => new Promise(
+  (resolve, reject) => {
+    let accepted = false
+    const enable = () => {
+      accepted = false
+      validator.enable()
+    }
+
+    addEventListeners(validator, reject, {
+      billsAccepted: () => { accepted = true },
+      billsRead: bills => resolve({ accepted, bills }),
+      billsRejected: () => enable(),
+    })
+
+    enable()
+  }
+).finally(doFinally(validator))
+
+const steps = () =>
+  new Promise((resolve, reject) => {
+    const validator = load(DEVICE_CONFIG, false)
+    validator.setFiatCode(FIAT_CODE)
+    validator.run(
+      err => err ? reject(err) : resolve(validator),
+      BOXES,
+    )
+  })
+  .then(validator => [
+    {
+      name: 'enableReject',
+      instructionMessage: `Try to insert a ${FIAT_CODE} bill...`,
+      confirmationMessage: "Did the validator retrieve the bill?",
+      test: testEnable(validator),
+    },
+
+    {
+      name: 'reject',
+      confirmationMessage: "Did the validator reject the bill?",
+      test: () =>
+        new Promise((resolve, reject) => {
+          addEventListeners(validator, reject, {
+            billsRejected: () => resolve(),
+          })
+          validator.reject()
+        }).finally(doFinally(validator)),
+    },
+
+    {
+      name: 'enableStack',
+      instructionMessage: `Try to insert a ${FIAT_CODE} bill...`,
+      confirmationMessage: "Did the validator retrieve the bill?",
+      test: testEnable(validator),
+    },
+
+    {
+      name: 'stack',
+      confirmationMessage: "Did the validator stack the bill?",
+      test: () =>
+        new Promise((resolve, reject) => {
+          addEventListeners(validator, reject, {
+            billsValid: () => resolve(),
+          })
+          validator.stack()
+        }).finally(doFinally(validator)),
+    },
+  ])
+
+module.exports = steps
diff --git a/lib/hardware-testing/index.js b/lib/hardware-testing/index.js
new file mode 100644
index 000000000..6c4569030
--- /dev/null
+++ b/lib/hardware-testing/index.js
@@ -0,0 +1,71 @@
+const readline = require('./readline')
+
+const PERIPHERALS = {
+  printer: require('./printer'),
+  billValidator: require('./bill-validator'),
+}
+
+
+const defaultPre = () => null
+const defaultPost = (error, result) => error ? { error } : { result }
+
+const reducer = (acc, {
+  name,
+  instructionMessage,
+  confirmationMessage,
+  skipConfirm = false,
+  keepGoing = false,
+  pre = defaultPre,
+  test,
+  post = defaultPost,
+}) =>
+  acc
+  .then(([cont, report]) => {
+    if (!cont) return [cont, report]
+    return (instructionMessage ?
+      readline.instruct(instructionMessage) :
+      Promise.resolve()
+    )
+      .then(() => {
+        const args = pre()
+        return test(args)
+      })
+      .then(
+        result => [true, post(null, result)],
+        error => [!!keepGoing, post(error, null)],
+      )
+      .then(([cont, result]) =>
+        (skipConfirm ? Promise.resolve(true) : readline.confirm(confirmationMessage))
+          .then(worked => [cont, result, worked])
+          .catch(error => [false, result, false])
+      )
+      .then(([cont, result, confirmed]) => {
+        report = Object.assign(report, {
+          [name]: { result, confirmed }
+        })
+        return [cont && (keepGoing || confirmed), report]
+      })
+  })
+
+
+const runSteps = steps =>
+  steps.reduce(reducer, Promise.resolve([true, {}]))
+
+const runPeripheral = ([peripheral, steps]) =>
+  steps()
+    .then(
+      steps => steps === null ? { skipped: true } : runSteps(steps),
+      error => { error }
+    )
+    .then(result => [peripheral, result])
+
+const runPeripherals = peripherals => {
+  readline.create()
+  return Promise.all(Object.entries(peripherals).map(runPeripheral))
+    .then(Object.fromEntries)
+    .finally(() => readline.close())
+}
+
+runPeripherals(PERIPHERALS)
+  .then(results => console.log(JSON.stringify(results, null, 2)))
+  .catch(console.log)
diff --git a/lib/hardware-testing/printer.js b/lib/hardware-testing/printer.js
new file mode 100644
index 000000000..e90086d06
--- /dev/null
+++ b/lib/hardware-testing/printer.js
@@ -0,0 +1,83 @@
+const { load } = require('../printer/loader')
+
+const PRINTER_CONFIG = {
+  model: "genmega",
+  address: "/dev/ttyS4",
+}
+
+const RECEIPT_DATA = {
+  operatorInfo: {
+    name: "operator name",
+    website: "operator website",
+    email: "operator email",
+    phone: "operator phone",
+    companyNumber: "operator companyNumber",
+  },
+  location: "location",
+  customer: "customer",
+  session: "session",
+  time: "14:29",
+  direction: 'Cash-in',
+  fiat: "200 EUR",
+  crypto: "1.234 BTC",
+  rate: "1 BTC = 123.456 EUR",
+  address: "bc1qdg6hsh9w8xwdz66khec3fl8c9wva0ys2tc277f",
+  txId: "07b2c12b88a2208f21fefc0a65dd045e073c566e47b721c51238886702539283",
+}
+
+const RECEIPT_CONFIG = Object.fromEntries([
+  "operatorWebsite",
+  "operatorEmail",
+  "operatorPhone",
+  "companyNumber",
+  "machineLocation",
+  "customerNameOrPhoneNumber",
+  "exchangeRate",
+  "addressQRCode",
+].map(k => [k, true]))
+
+const WALLET = { privateKey: "private    key" }
+
+const steps = () => load()
+  .then(
+    printer => [
+      {
+        name: 'checkStatus',
+        skipConfirm: true,
+        pre: () => PRINTER_CONFIG,
+        test: printerCfg => printer.checkStatus(printerCfg),
+      },
+
+      {
+        name: 'printReceipt',
+        confirmationMessage: "Was a receipt printed?",
+        keepGoing: true,
+        pre: () => ({
+          receiptData: RECEIPT_DATA,
+          printerCfg: PRINTER_CONFIG,
+          receiptCfg: RECEIPT_CONFIG,
+        }),
+        test: ({ receiptData, printerCfg, receiptCfg }) =>
+          printer.printReceipt(receiptData, printerCfg, receiptCfg),
+      },
+
+      {
+        name: 'printWallet',
+        confirmationMessage: "Was a wallet printed?",
+        keepGoing: true,
+        pre: () => ({
+          wallet: WALLET,
+          printerCfg: PRINTER_CONFIG,
+          cryptoCode: 'BTC',
+        }),
+        test: ({ wallet, printerCfg, cryptoCode }) =>
+          printer.printWallet(wallet, printerCfg, cryptoCode),
+      },
+    ],
+    error =>
+      error.message === 'noPrinterConfiguredError' ?
+        null :
+        Promise.reject(error)
+  )
+
+module.exports = steps
diff --git a/lib/hardware-testing/readline.js b/lib/hardware-testing/readline.js
new file mode 100644
index 000000000..b3bdd2749
--- /dev/null
+++ b/lib/hardware-testing/readline.js
@@ -0,0 +1,61 @@
+const readline = require('node:readline');
+const { stdin: input, stdout: output } = require('node:process');
+
+let rl = null
+
+
+const create = () => {
+  rl = readline.createInterface({
+    input,
+    output,
+    terminal: true,
+  })
+}
+
+
+const close = () => {
+  rl.close()
+  rl = null
+}
+
+
+const instruct = msg => new Promise((resolve, reject) => {
+  try {
+    rl.write(`\n${msg}\n`)
+    return resolve()
+  } catch (error) {
+    return reject(error)
+  }
+})
+
+
+const confirmOnce = msg => new Promise((resolve, reject) =>
+  rl.question(
+    `${msg} ([y]es/[n]) `,
+    answer =>
+      ["y", "yes"].includes(answer) ? resolve(true) :
+      ["n", "no"].includes(answer) ? resolve(false) :
+      reject(true)
+  )
+)
+
+const confirm = async msg => {
+  msg ??= "Did it work?"
+  const retry = true
+  while (retry) {
+    try {
+      return await confirmOnce(msg)
+    } catch (newRetry) {
+      retry = typeof(newRetry) === 'boolean' && newRetry
+    }
+  }
+  return false
+}
+
+
+module.exports = {
+  create,
+  instruct,
+  confirm,
+  close,
+}
diff --git a/lib/mei/cashflow_sc.js b/lib/mei/cashflow_sc.js
index 9e07f9572..9e4fd58ff 100644
--- a/lib/mei/cashflow_sc.js
+++ b/lib/mei/cashflow_sc.js
@@ -218,7 +218,7 @@ function parseStatus (data) {
     (data[0].returned || data[1].cheated || data[1].rejected) ? 'billsRejected' :
     data[1].jammed ? 'jam' :
     !data[1].cassetteAttached ? 'stackerOpen' :
-    data[0].idling ? 'idle' :
+    data[0].idling ? 'standby' :
     null
 }