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STD Heating actuator controller (rs485)

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Update time: 2021-09-07 08:43:36
Creation time: 2020-11-16 08:37:40
Description
Control underfloor heating actuators based on commands received either over WiFi or over RS485 (depends on the software). The heating actuators should be for 24V DC.
Design Drawing
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ID Name Designator Footprint Quantity
1 Connector TS-502 2P 24V,24V.,D1,D2,D3,D4,D5,D7,D8,D9 TS-502 2P 10
2 100nF C1,C8 0603 2
3 10uF C2,C9 1206 2
4 10nF C6 0603 1
5 3.9nF C7 0603 1
6 22uF C10 1206 1
7 RS485 CN1 CONN-TH_DG308-2.54-02P-14-00A 1
8 SS26 D6 SMA_L4.3-W2.6-LS5.2-RD 1
9 100uH L1 IND-SMD_L7.3-W7.3 1
10 33uH L2,L3 CD32 2
11 1206B LED1,LED2,LED3,LED4,LED5,LED6,LED7,LED8 LED1206-R-RD 8
12 IRLML6344 Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q8 SOT-23-3_L2.9-W1.6-P1.90-LS2.8-BR 8
13 10k R1,R6,R8,R10,R12,R14 R0805 6
14 2.2k R2,R5,R7,R9,R11,R13,R15,R17 R0805 8
15 100K R3 0603 1
16 6.8K R4 0603 1
17 26.1K R16 0603 1
18 10K R18 0603 1
19 10k R19,R20,R21,R22,R23,R24,R25,R26 R1206 8
20 4.7k R31 R0603 1
21 120 R32 R0603 1
22 MAX3485 U1 SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL 1
23 MP2307DN-LF-Z U2 SOP-8_EP_150MIL 1
24 WEMOS D1 MINI_ EIGEN_COPY U7 WEMOS D1 MINI 1

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