Search found 5 matches

by Jay Vadoliya
Mon Apr 11, 2022 10:49 am
Forum: Hardware
Topic: ESP32 Wrover B PCB Design
Replies: 5
Views: 3247

Re: ESP32 Wrover B PCB Design

Thanks

what about 470uf capacitor i dont generally see this heavy capacitor on any board
by Jay Vadoliya
Mon Apr 11, 2022 10:00 am
Forum: Hardware
Topic: ESP32 Wrover B PCB Design
Replies: 5
Views: 3247

Re: ESP32 Wrover B PCB Design

We did working Prototype with LILYGO Board so for reference we used schematic of same board. In schematic of board IO21 & IO22 is pulled up.
5V power supply is taken From Industrial SMPS which can deliver 3 to 4 amps

schematic file is attached.
by Jay Vadoliya
Mon Apr 11, 2022 8:34 am
Forum: Hardware
Topic: ESP32 Wrover B PCB Design
Replies: 5
Views: 3247

ESP32 Wrover B PCB Design

After Some problems in previous board I am designing new board with ESP32 Wrover B and i am using reference design of module but there are some questions that i want to ask before sending this design to PCB routing. 1.Why IO22 and IO21 is pulled up ? 2.Is there any other protection required in power...
by Jay Vadoliya
Fri Apr 08, 2022 10:47 am
Forum: Hardware
Topic: ESP32 Custom PCB Issue
Replies: 2
Views: 1843

Re: ESP32 Custom PCB Issue

First We are trying to Work with First ESP module and tried to read temperature using MAX31865 but SPI lines are not reading anything same problem with MAX31855 and other sensors.
by Jay Vadoliya
Fri Apr 08, 2022 10:15 am
Forum: Hardware
Topic: ESP32 Custom PCB Issue
Replies: 2
Views: 1843

ESP32 Custom PCB Issue

we build prototype using two ESP32 Wrover B and function of one module was to read all digital or analog data then send it to second ESP32 Module where we used 3 MAX31865 Modules and 1 MAX31855 module. Function of other module was to receive data and perform actions related to data. Prototype was su...