mmbln/tc2garden lamp controller
Tc2 is an open-source printed circuit board by mmbln, from the mmbln/tc2 repository on GitHub. It is a 2-layer board of 142.5 × 110 mm with 70 parts on 69 nets, routed with 591 tracks and 16 vias.
It is built around the 74LS125DC, L4978 and BC546, with the SB560 among its other parts. Its parts include 20 capacitors, 20 resistors, 9 diodes, 5 ICs and 5 crystals. It belongs with the lEDs and displays boards and the ESP8266 and NXP (LPC, Kinetis, i.MX RT) boards of this library.
garden lamp controller
This is a project which is about a pcb and its software that controls two lamps in my garden. The lamps are switched on when the sun goes down and switched off when the sun comes up.
The times of the sunset and sunrise are fetched from the internet. Also the current time is fetched from the internet. The main controller is an ARM microprocesser (LPC1114). The network connection is done by a wifi interface (ESP8266).
The pcb is designed with kicad. The microcontroller program will be written in C (not checked in yet). Be patient.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | u1 | Capacitors_ThroughHole:C_Rect_L7_W2_P5 | C3, C10, C11, C12, C15, C16, C17, C18, C19, C20 |
| 4 | 10R | R4 | R6, R7, R18, R23 |
| 4 | 1K | R4 | R10, R16, R20, R22 |
| 4 | 1N4148 | Diodes_ThroughHole:Diode_DO-35_SOD27_Horizontal_RM10 | D6, D7, D8, D9 |
| 4 | 27K | R4 | R3, R4, R5, R9 |
| 4 | BC546 | TO_SOT_Packages_THT:TO-92_Molded_Narrow | Q1, Q2, Q3, Q4 |
| 4 | JUMP2 | tc2:schraubklemme2 | X2, X3, X4, X6 |
| 4 | LED | LEDs:LED-3MM | D2, D3, D4, D5 |
| 3 | 1u | Capacitors_ThroughHole:C_Radial_D5_L11_P2 | C5, C13, C14 |
| 2 | 100n | Capacitors_ThroughHole:C_Rect_L7_W2_P5 | C6, C8 |
| 2 | 10k | R4 | R17, R19 |
| 2 | 27k | R4 | R1, R8 |
| 2 | BIRELAIS | tc2:bistabilrelais | R15, R21 |
| 1 | 120u | tc2:L100 | L1 |
| 1 | 1K | tc2:SIP-5 | R11 |
| 1 | 220n | Capacitors_ThroughHole:C_Rect_L7_W2_P5 | C2 |
| 1 | 220u | Capacitors_ThroughHole:C_Radial_D10_L13_P5 | C1 |
| 1 | 22n | Capacitors_ThroughHole:C_Rect_L7_W2_P5 | C7 |
| 1 | 2n2 | Capacitors_ThroughHole:C_Rect_L7_W2_P5 | C4 |
| 1 | 330u | Capacitors_ThroughHole:C_Radial_D10_L13_P5 | C9 |
| 1 | 74LS125 | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | U4 |
| 1 | 9k1 | R4 | R2 |
| 1 | ACDC | tc2:ACDC | X1 |
| 1 | ESP01 | tc2:esp01 | U2 |
| 1 | L4978 | Housings_DIP:DIP-8_W7.62mm | U3 |
| 1 | LPC1114 | Housings_DIP:DIP-28_W15.24mm | U5 |
| 1 | SB560 | Diodes_ThroughHole:Diode_DO-41_SOD81_Horizontal_RM10 | D1 |
| 1 | SPST | tc2:taster | SW2 |
| 1 | SPST | tc2:Switch | SW1 |
| 1 | USBSERIAL3V3 | tc2:SIPSerial | U1 |
The 66 most common of 70 parts.
It measures 142.5 × 110 mm and has 2 copper layers, 1.6 mm thick.
70 parts, built around the 74LS125DC, L4978, BC546 and SB560. 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 mmbln/tc2 repository on GitHub, at the commit this page was made from: the board is kicad/tc2.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 mmbln before reusing the design.
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