Terms of Service

Effective 14 September 2026

This is the contract between you and Amber. It covers the website, the free lessons, your account, and buying a course. Read it before you buy. Save or print this page if you want a copy.

Contents

1. 1. Introduction
2. 2. Your obligations
3. 3. Buying a course
4. 4. Rights and limits
5. 5. Safety
6. 6. Guarantee, disclaimer and limit of liability
7. 7. Termination
8. 8. Governing law and disputes
9. 9. General terms
10. 10. How to contact us

1. Introduction

1.1 Contract

When you use the site you agree to these terms. When you pay for a course you agree to them again, together with the refund policy and the privacy policy, which are part of this contract. If you do not agree, do not use the site.

These terms apply to ambercourse.com and every page, lesson and email that comes with it.

1.2 Who we are

You are entering into this contract with Neurawing, a sole proprietorship trading as Amber Course, registered with the Netherlands Chamber of Commerce (KVK) under number 42155864, at Bredebeek 44, 8033 CJ Zwolle, the Netherlands, email support@ambercourse.com. In these terms, "we", "us" and "Amber" mean Neurawing. "You" means the person using the site.

1.3 Changes

We may change these terms. The date at the top tells you when. For a course you already bought, the terms in force on the day you paid keep applying to that purchase. If we change something that matters to owners, we email every owner before the change takes effect. If you do not agree with a change, stop using the site and tell us. Within 30 days of a purchase you can still cancel it.

2. Your obligations

2.1 Eligibility

Anyone may read the free lessons. To buy a course you must be able to enter a contract where you live. If you are under 18, ask a parent or guardian before you buy.

2.2 Your account

You sign in with a 6-digit code we email you. There is no password. Anyone who can read your email can sign in as you, so keep your inbox safe. Tell us at once if you think someone else is using your account.

You are responsible for what happens on your account. Keep the email on it one you can read, because that is where your codes and our notices go. If you ask us for access to an account, we may ask you to prove it is yours.

An account is for one person, and one person has one account. Do not share your sign-in code or your account, and do not use someone else's. You cannot transfer your account to anyone.

2.3 Payment

The price of a course is on its page and on the pricing page, in US dollars, tax included. You see the total before you pay. The price that counts is the one shown when you pay. We may change prices, but a change never touches a course you already bought. A promotion code is worth what its offer says, and nothing more.

You pay by card, or with a wallet where your device offers one, on the page of our payment provider. Use a payment method that is yours to use, and give true and complete details. The course opens on your account as soon as the payment is confirmed, usually within a minute. Your receipt comes by email.

If a payment fails or is reversed, the course closes until it is paid. If something is wrong with a charge, email us first. We answer fast and we refund when a refund is due. If you dispute the charge with your bank or card company instead, the course closes while the dispute runs. If the dispute ends in your favour, the purchase is undone and the course stays closed. If we find a purchase was made with a stolen card or a false identity, we may refund it, close the course and close the account.

We may be unable to sell in some countries because of the law or the rules of our payment provider.

2.4 Notices and messages

We send notices to the email on your account: sign-in codes, receipts, and anything these terms say we tell you. New-lesson mail only goes to people who asked for it. You send notices to support@ambercourse.com.

3. Buying a course

3.1 What you buy

A course is one payment. It is not a subscription and it never renews.

You get personal access to one course, every level and every lesson of it, for as long as the site runs. Every lesson that is ready opens the day you pay. Every new lesson in that course opens for you the day it lands, at no extra cost.

What you buy is a licence to learn from the course on this site. It is not a copy of the course and it does not make you the owner. Access is for you alone. You cannot transfer it, sell it or share it.

If the law ever forces us to take a lesson down, we replace it. If we cannot replace it and the course loses real value, we refund you for that course, even after 30 days.

3.2 What is ready and what is planned

On a course page every lesson is Free, Locked or Coming. Free lessons are open to everyone. Locked lessons are written and open with the full course. Coming lessons are not written yet.

The number of planned lessons is a plan, not a promise. Lessons land as they are written, and any date we give is an estimate. We may change the order, the titles and the content of lessons as the course grows. We may also stop adding lessons to a course. What is open stays open.

3.3 Your right to cancel

By law you can cancel an online purchase within 14 days without giving a reason. We extend that to 30 days. Ask within 30 days of purchase and you get the full amount back, tax included.

You can open and use the lessons during those 30 days. That does not cost you the right to cancel.

To cancel, email support@ambercourse.com from the address you bought with, or use the cancellation form on the refund policy page. We confirm by email. The money goes back to the way you paid within 14 days of your message.

Days 15 to 30 are our own promise, on top of the law. We may refuse them to someone who buys, finishes and refunds course after course, or who has broken these terms. Your legal 14 days always stand.

4. Rights and limits

4.1 Your licence

We give you a personal, non-transferable licence to read the free lessons and, once you have paid, to learn from the course you bought, on this site, for your own learning. Quoting a short passage to discuss it, with a link back, is fine. Using a course in a school, a company or a group needs our written agreement first.

4.2 Our content and name

The lessons, the instruments, the text, the art, the code and the name and logo of Amber belong to Neurawing or to the people who licensed them to us. Your licence does not make you the owner, and it gives you no right to use the Amber name or logo.

What you build and write while learning is yours.

4.3 Feedback

If you send us an idea, a correction or a suggestion, we may use it freely, without paying you and without naming you.

4.4 Service availability

We work to keep the site running and secure. No site can promise that it will never be attacked. We may take the site down for short periods for maintenance, and we may change how it looks and works. If we ever close the site for good, we tell every owner by email at least 90 days before.

4.5 Other sites

The site links to other sites, such as our payment provider's. We do not run those sites and are not responsible for them. Their own terms apply there.

4.6 Dos and don'ts

You agree that you will use the site lawfully and for your own learning. You agree that you will not:

• copy, record, download, share, sell, rent or republish a lesson or an instrument, in whole or in part
• share your sign-in code, or give someone else access to a paid lesson
• get around the sign-in, the paid lessons or any other protection on the site
• scrape the site, or use bots, scripts or other automated tools against it
• use the lessons for text or data mining, or to train a machine-learning model
• copy, reverse engineer or make derivative works from the site's code, its instruments or its art
• probe, scan or test the site's security, or access any part of it that is not meant for visitors
• attack the site, overload it, or send anything that pretends to come from Amber
• use the site to break the law or the rights of others
• help or encourage anyone else to do any of these

If you find a security hole, tell us by email and we fix it. Do not use it.

5. Safety

The instruments on the site are simulations. Some lessons ask you to build a real circuit with a battery, a breadboard and small parts. These run on low voltage, but a real part can still get hot, spark or break. Follow the safety notes in each lesson, and never work on mains electricity or on anything plugged into a wall socket.

You are responsible for what you build and for the parts you use. We are not responsible for damage caused by a circuit you built or by parts you bought elsewhere.

6. Guarantee, disclaimer and limit of liability

6.1 The legal guarantee

The site works on a current phone, tablet or computer with an up-to-date browser. If a lesson does not work as described, tell us and we fix it. If we cannot fix it within a reasonable time, you get your money back for that course. This is your legal guarantee, and nothing in these terms limits it.

6.2 No other promise

Beyond the legal guarantee, the site is offered as it is. We do not promise a particular result. A rank you earn on Amber is ours. It is not a diploma, a certificate or a qualification, and no school or employer has to accept it. A course teaches electronics. It does not replace the datasheets, standards or professional advice a real product needs, and we are not responsible for how you use what you learn.

We are not responsible for a delay or an outage caused by something outside our control, such as a failure of the internet, our hosting or the power, a disaster, or an act of government.

6.3 Limit of liability

If we cause you damage, we pay for it up to the amount you paid us for the course concerned. We do not pay for indirect loss, such as lost profit, lost time or lost data.

That cap does not apply if the damage comes from our intent or gross negligence, if it is injury to a person, or where the law does not allow the cap. Nothing in these terms limits a right the law gives you as a consumer.

You are responsible for damage you cause by breaking these terms, including a claim someone else brings against us because of it.

7. Termination

You can end this contract at any time by closing your account. Email us and we close it. Closing your account does not refund a purchase outside the 30 days.

We may close an account that breaks these terms, after telling you why. If we close your account for breaking these terms, you keep your legal right to cancel a purchase, and nothing more.

Sections 4, 6, 8 and 9 keep applying after the contract ends.

8. Governing law and disputes

If something is wrong, email support@ambercourse.com first. We answer within 14 days and try to solve it with you. Most problems end there.

Dutch law applies to this contract. If you are a consumer in another country, the rules there that protect you still apply. A dispute we cannot solve together goes to the court in the Netherlands, or, if you are a consumer in the European Union, to the court of the country you live in.

9. General terms

This contract, the refund policy and the privacy policy are the whole agreement between you and us about the site. If a court finds one part of it invalid, the rest still applies, and the invalid part is read in the way that comes closest to what it meant. If we do not act on a breach right away, we can still act on it later.

You may not transfer this contract to anyone. We may move it, the site and your account to another company that takes Amber over, such as a company we set up for it. Your course, your purchase and these terms move with it. We tell you by email when that happens.

These terms are written in English. If we ever publish a translation, the English text counts.

10. How to contact us

Email support@ambercourse.com. Write from the address you sign in with and name the course. Or write to Neurawing, Bredebeek 44, 8033 CJ Zwolle, the Netherlands. See the contact page.