
SmartTherm
Strooom/SmartTherm
Controlling a Junkers heating (Eurostar ZWE24) with an IoT thermostat

Controlling Speed of DC Motor using Potentiometer
Open Loop DC Motor Speed Control Project is an open-source printed circuit board by Ammar-Bin-Amir, from the Ammar-Bin-Amir/Open_Loop_DC_Motor_Speed_Control repository on GitHub. It is a 2-layer board of 38.1 × 22.9 mm with 12 parts on 12 nets, routed with 116 tracks and 0 vias.
It is built around the BC546. Its parts include 4 resistors, 2 capacitors, 2 transistors, 2 connectors and 1 IC. It belongs with the robots and motor control boards of this library.
The function of speed control in DC motors is very essential in the achievement of desirable outputs. In this project, the speed of dc motor is controlled manually using potentiometer along with the assistance of human. The purpose of this project is to implement the concepts of linear control system and to find out the open loop system's functionality.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10kΩ | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4 |
| 2 | 470μF,16V | Capacitor_THT:CP_Radial_D8.0mm_P2.50mm | C1, C2 |
| 1 | 9V | Connector_PinSocket_2.00mm:PinSocket_1x02_P2.00mm_Vertical | BT1 |
| 1 | BC546 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | BC636 | Package_TO_SOT_THT:TO-92_Inline | Q2 |
| 1 | Conn_01x02_Female | Connector_PinSocket_2.00mm:PinSocket_1x02_P2.00mm_Vertical | J2 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J1 |
| 1 | LM741 | Package_DIP:DIP-8_W7.62mm | U1 |

Strooom/SmartTherm
Controlling a Junkers heating (Eurostar ZWE24) with an IoT thermostat



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It measures 38.1 × 22.9 mm and has 2 copper layers, 1.6 mm thick.
12 parts, built around the BC546. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the Ammar-Bin-Amir/Open_Loop_DC_Motor_Speed_Control repository on GitHub, at the commit this page was made from: the board is Open_Loop_DC_Motor_Speed_Control_Project/Open_Loop_DC_Motor_Speed_Control_Project.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask Ammar-Bin-Amir before reusing the design.