moskyt/spojeFirmware telefonni ustredny pro Hvozdy.
Spoje pcb is an open-source printed circuit board by moskyt, from the moskyt/spoje repository on GitHub. It is a 2-layer board of 95.2 × 74.9 mm with 31 parts on 42 nets, routed with 138 tracks and 0 vias.
It is built around the LTV-817 and IRLZ24PBF. Its parts include 12 connectors, 10 resistors, 2 capacitors, 2 ICs and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
vsechna ctyri napeti maji svoji indikaci na prednim panelu a svuj vypinac
na vstupnich 230VAC je pojistka
POZOR! IEC konektor na vstupu nema standardizovane zapojeni, resp. ruzne kabely jsou ruzne. je tedy treba mit na pameti, ze L a N mohou byt prohozene (a nikdo s tim nic neudela)
Meanwell RD-35B (+5/+24V)
5V napaji arduino
24V napaji telefonni linku
pouziva se pro vyzvaneci AC
je to trafo 400->110, tedy 230->63 voltu, coz je optimalni
viz spoje_pcb -- projekt v kicadu
v 'doc/` je vyexportovane schema a PCB v kicadu
vsechny draty jsou popsane
napajeni ctyr napeti (master 230VAC, vyzvaneci trafo, dva vystupy z DC zdroje)
cervene reset tlacitko (hardware reset na RESET pinu)
zluta tlacitka jsou na vyzvaneni na prislusnych linkach. je to SW zvoneni, aktivace stavu POKE.
specifikace vyzvanecich tonu:
https://vyvoj.hw.cz/navrh-obvodu/rozhrani/telefonni-linky-v-cr-a-sr.html
https://www.ranecommercial.com/legacy/note150.html
http://home.zcu.cz/~vargaj/U%20S%20T/Telefonni%20pristroje.pdf
http://mcu.cz/news.php?extend.8 http://mcu.cz/images/newspost_images/00/26/00-26.pdf
https://forum.arduino.cc/t/intercom-using-two-old-dial-telephones/606457
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1K | Resistor_THT:R_Axial_DIN0614_L14.3mm_D5.7mm_P20.32mm_Horizontal | R1, R8 |
| 2 | 1N4001 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2 |
| 2 | 2K2 | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P15.24mm_Horizontal | R2, R9 |
| 2 | 2K2 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R7 |
| 2 | 330R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R10 |
| 2 | IRLZ24 | Package_TO_SOT_THT:TO-220-3_Vertical | Q1, Q2 |
| 2 | LTV-817 | Package_DIP:DIP-4_W7.62mm | U1, U2 |
| 1 | 10 K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11 |
| 1 | 10 uF | Capacitor_THT:C_Radial_D6.3mm_H5.0mm_P2.50mm | C2 |
| 1 | 100 nF | Capacitor_THT:C_Radial_D6.3mm_H5.0mm_P2.50mm | C1 |
| 1 | 24V | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J12 |
| 1 | 330 R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12 |
| 1 | 5V | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J2 |
| 1 | Arduino_Nano_Every | Module:Arduino_Nano | A1 |
| 1 | LINE_A | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J8 |
| 1 | LINE_B | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J10 |
| 1 | NEOPIXEL | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | OLED | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | RELAY | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J4 |
| 1 | RESET_BUTTON | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J9 |
| 1 | RING_A_BUTTON | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | RING_B_BUTTON | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | SIGNAL_24V | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | SIGNAL_5V | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J11 |
It measures 95.2 × 74.9 mm and has 2 copper layers, 1.6 mm thick.
31 parts, built around the LTV-817 and IRLZ24PBF. 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 moskyt/spoje repository on GitHub, at the commit this page was made from: the board is spoje_pcb/spoje_pcb.kicad_pcb and its schematic spoje_pcb/spoje_pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask moskyt before reusing the design.
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