{"id":80808,"date":"2026-03-31T11:34:25","date_gmt":"2026-03-31T09:34:25","guid":{"rendered":"https:\/\/fhi.nl\/nieuws\/da-vinci-satellite-student-cubesat-for-space-education\/"},"modified":"2026-03-31T11:34:26","modified_gmt":"2026-03-31T09:34:26","slug":"da-vinci-satellite-student-cubesat-for-space-education","status":"publish","type":"news","link":"https:\/\/fhi.nl\/en\/news\/da-vinci-satellite-student-cubesat-for-space-education\/","title":{"rendered":"Da Vinci Satellite: Student CubeSat for Space Education"},"content":{"rendered":"\n
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\n\t\t\t\t\tDa Vinci Satellite: Student CubeSat for Space Education\t\t\t\t<\/h1>\n\n\t\t\t\t
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The Da Vinci Satellite is an educational project, both in its output and in its development. The project\u2019s goal is to inspire the younger generation and to enthuse them for space exploration through a series of educational lessons and direct interaction with the satellite\u2019s payloads. The project\u2019s development is also focused on education, as the satellite is entirely developed by students for students.<\/p>\n\n\n\n

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The Da Vinci Satellite team has been sponsored by Eurocircuits<\/strong> from the early designs of our solar panels to our most recent Printed Circuit Board (PCB) designs. The team is now in a delicate phase: right at the finishing design touches, and about to begin more intensive and integrated testing campaigns. This means that we will finalize our designs, order material, and simultaneously develop protocols and procedures to ensure the safety of our software, hardware, and team members during testing.<\/p>\n\n\n\n

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On-board subsystems<\/h3>\n\n\n\n
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In the past two academic years, the team has been developing testing boards and flight components, some of which are soon going to be part of a space qualification campaign. On board of the satellite, there are three main in-house developed subsystems: the Dice Payload<\/strong>, the Bitflip Payload<\/strong>, and the Command and Data Handling subsystem\u2019s data board<\/strong>.<\/p>\n\n\n\n

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The Dice Payload<\/h5>\n\n\n\n
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The Dice Payload<\/strong> is a mechanical payload that was designed with primary school children in mind. It consists of five dice that are thrown in microgravity, along with a camera that takes pictures of them. A sweeper shuffles the dice and then clamps them. By clamping the dice, it is possible to take a picture of them with the Earth seen from space in the background, which is then later downlinked to the ground station.<\/p>\n\n\n\n

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The clamping and sweeping are actuated using an Arduino and a motor driver, which are connected and the sweepers\u2019 motors via a PCB from Eurocircuits<\/strong>.<\/p>\n\n\n\n

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The Arduino also needs to coordinate the LEDs, which will assist when taking a picture of the dice. Additionally, it needs to stop the motors from clamping the dice to prevent them from stalling. Due to the required coordination, there are multiple connectors on the PCB running to other PCBs, such as the LED PCB and the limit switch PCBs.<\/p>\n\n\n\n

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The LED PCB is connected to the Arduino via the top right connector through a ribbon cable.<\/p>\n\n\n\n

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The hole in the middle of the LED PCB is for the camera. The PCB can host a transistor, two LEDs, and the required resistors on the LED PCB.<\/p>\n\n\n\n

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The Arduino is connected to two sets of limit switches via a ribbon cable. The limit switches detect when the clamp (the aluminum part in between the PCBs) is at the start or at the end of its stroke.<\/p>\n\n\n\n

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There is a spot for a resistor on each PCB. The limit switches are soldered on the backside and slot into the PEEK slabs to which the limit switch PCBs are mounted.<\/p>\n\n\n\n

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The Bitflip Payload<\/h5>\n\n\n\n
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The Bitflip Payload<\/strong> is designed for advanced students with an interest in programming. It consists of five stacked printed circuit boards (PCBs) equipped with a series of memory chips. These memory chips are intentionally left unprotected from cosmic radiation, which can cause random bit flips within the stored data. As a result, images saved on board become distorted. Students can then analyze and decode these altered images by applying concepts taught in our educational lecture materials.<\/p>\n\n\n\n

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PCBs from Eurocircuits<\/strong> will be used in our Qualification Model and Flight Model for the Bitflip Payload<\/strong>. Currently, we are assembling the Qualification Model for the Bitflip Payload, which, together with Dice Payload Qualification Model, will undergo vibration and thermal testing in a few months, to simulate the conditions of a rocket launch and the harsh space environmental conditions.<\/p>\n\n\n\n

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The figures above depict a single Bitflip PCB. Each board contains one primary control chip, referred to as the “brain”, along with three memory modules. The control chip manages and operates the payload, while the memory modules store the images uploaded to the bitflip payload. These stored images are vulnerable to cosmic radiation, which can alter the memory bits and result in distorted images being relayed back to students.<\/p>\n\n\n\n

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The complete bitflip payload on the Da Vinci Satellite consists of five PCBs stacked together using male\/female pin headers. Four critical connections link the boards: SDA and SCL for I\u00b2C communication, VCC (3.3V), and Ground. Power is supplied by the On-Board Computer (OBC), while I\u00b2C communication is managed through the payload manager.<\/p>\n\n\n\n

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Each PCB\u2019s microcontroller is programmed using the STM32Cube software. By utilizing the programmed microcontroller, it is possible to calculate the number of bit flips that occur on the memory chips by comparing the uploaded image with the received, distorted version.<\/p>\n\n\n\n

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The memory modules use SRAM technology, which requires a constant power supply to maintain stored data. Because SRAM is sensitive to cosmic radiation, disruptions in its memory bits directly contribute to the distortion of the stored images.<\/p>\n\n\n\n

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The Command and Data Handling Subsystem<\/h5>\n\n\n\n
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The Command and Data Handling Subsystem (CDH)<\/strong> is the satellite\u2019s brain. It hosts three microcontroller units to operate the payloads and the rest of the satellite bus. It also hosts a GNSS receiver, which is an additional payload provided by TU Delft that the satellite is carrying. The data board, CDH\u2019s PCB, manufactured and delivered by Eurocircuits,<\/strong> plays a crucial role in the success of our satellite mission as it ensures that the electrical connections can transport data and power to the correct subsystems.<\/p>\n\n\n\n

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In most satellites, the central processing unit is referred to as the On-Board Computer (OBC). In the Da Vinci Satellite, this role is fulfilled by the CDH. It earns this distinct name because, unlike typical designs, it hosts not one but three OBCs:<\/p>\n\n\n\n

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