Our Can will use servos, which are required to be located near the top of our Can.
However, we also have to consider external electrical connections. There is only space for an accelerometer/gyroscope module and a radio transmitter on this layer. Sensors layer - Modules that run off 3V3 may be powered directly by the Pi Pico's output. For our project, we are choosing instead to use two separate voltage regulators, one for the Pico and another for the actuators. Ideally you would power these components with a different power supply, then connect them both to the same "ground", to prevent interference to the MCU's power supply. These cannot be powered directly from the MCU, as the voltage provided would not be high enough (the Pico only supplies up to 3.3 Volts) and the high current draw can damage the MCU. In our project, we will be using the Raspberry Pi Pico, a 3V3 device that can be powered using up to 5.5V.Īctuator layer - high-power components, such as servos and motors, will consume a lot of current. each pin on the MCU is connected to a hole, and the pins are connected to the layers above/below via these holes. It essentially acts as a breakout board, i.e. Microcontroller (MCU) layer - a layer dedicated to just the microcontroller, as it takes up a lot of space by itself. This will help you decide which components go on which layers.įor example, you may have the some or all of the following: You need to think about what components your circuit will use, and then sort your circuit into different sections according to the type of component. GRIT - Guts, Resilience, Initiative, TenacityĪ Burning Desire to create something WONDERFUL You can buy these cheaply off eBay - Stacked headers, H eaders. S tacked headers are special long headers that are a combination of male and female headers, that allow us to plug the PCBs on top of one another, hence allowing electronic signals to travel vertically up/down a stack. Headers - these can either be male (they have pins) or female (they have holes which accept the pins). This option typically makes the order cost more. An incredible PCB supplier and manufacturer, providing affordable prices and quality PCBs.Ī Soldering Kit - We will be soldering all our components to the PCB by handĬircuit Parts - there is an option for JLCPCB to source the parts and solder them onto your circuit board, but we will not be choosing this for the sake of simplicity (and also for the satisfaction of soldering a circuit by hand).
Circuit design software software#
Recommended for beginners/intermediate designers, this software is not as advanced as EasyEDA, EAGLE, KiCad, etc. We have decided to attempt to perform an autonomous landing of our satellite, by steering a parafoil with the aid of servos and a motor.įritzing - The software we are using to design the PCB. All teams complete one primary mission, which is to analyse environmental data, and one secondary mission of the team's own devising. The drinks can is launched into the sky, either by drone, rocket or weather balloon, and it performs experiments on descent. The CanSat competition is one where teams of students aim to build a functioning satellite that fits in the size of a drinks can. JLCPCB is one of the most popular leading PCB manufacturers in the world, and they are passionate about inspiring and encouraging young engineers and students, to help turn their ideas and creativity into reality. This article is sponsored by JLCPCB, who have kindly offered to speedily manufacture our PCBs for free. For us, we need to stuff all our electronics into the size of a drinks can, hence we do not have the liberty to connect all our sensors and mechanisms onto a single, flat, wide surface.
Stacked PCBs are where multiple PCBs are vertically connected to each other, allowing you to make more efficient use of the limited space you may be provided by a project, by expanding your electrical connections into the third dimension. We wanted to share with you our process for designing a set of stacked PCBs in Fritzing software. Hey there! We are Team Nebula, competing in the UK's CanSat competition for 2022.
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