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2.The process supports design scales of 300 devices or 1000 pads
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Ongoing
STD vetercek WS 2G/nb-iot
License: GPL 3.0
Mode: Editors' pick
- 3
Update time：
2023-10-06 09:26:41
Creation time：
2020-05-16 20:31:50
Description
V 0.6. version of the project
- hardware serial is used for ultrasonic anemometer
- capacitor change so that serial reset don't restart arduino
V 0.5. version of the project
- charger TP4056 was replaced by switch current charger MP2625 for better efficiency
- MAX3232 was replaced by MAX2321 for lower power consumption
V 0.4. version of the project
- SIM800L was replaced by SIM7000E which support 2G and nb-iot (useful in future)
- in previous version modules like arduino pro mini, sim800l... were bought separately and then soldered together on PCB. Now we design PCB from scratch using SMD components, mostly size 1206.
- there are two headers, one for serial connection (debugging) and one for programming atmega chip.
- i2c connector was added so we could possibly connect ultrasonic anemometer in future
- for power supply we used modified TP4056 - (mostly standard parts)
- added RS232 port to attach and power ultrasonic anemometer
Design Drawing
schematic diagram
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PCB
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