From ec2e7cbecbc1ba9be0d16353abb89ad0ba130608 Mon Sep 17 00:00:00 2001 From: Torsten Stauder Date: Mon, 7 Dec 2020 16:14:04 +0100 Subject: [PATCH] Updated parts --- Hardware-Plaforms/Wemos Lolin32/README.md | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/Hardware-Plaforms/Wemos Lolin32/README.md b/Hardware-Plaforms/Wemos Lolin32/README.md index b914a09..fb320a6 100644 --- a/Hardware-Plaforms/Wemos Lolin32/README.md +++ b/Hardware-Plaforms/Wemos Lolin32/README.md @@ -15,11 +15,11 @@ After I've been asked many times to provide a PCB, I finally did so :-) It makes ## Prerequisites * If no [headphone-pcb](https://github.com/biologist79/Tonuino-ESP32-I2S/tree/master/PCBs/Headphone%20with%20PCM5102a%20and%20TMD1308) is connected, make sure `HEADPHONE_ADJUST_ENABLE` is not active. -* I used 390/130 kOhms-resistors as voltage-divider. However, make sure to use a multimeter to determine their exact values in order to achieve a better battery-measurement. They can be configured in `settings.h` as `rdiv1` und `rdiv2`. Hint: for Lolin D32's battery-measurement 100k+100k were used. However, I decided to change the ratio from 50/50% to 25/75% to have a "better" signal. 100/100 might be work as well; didn't test it. +* I used 390/130 kOhms-resistors as voltage-divider. However, make sure to use a multimeter to determine their exact values in order to achieve a better battery-measurement. They can be configured in `settings.h` as `rdiv1` and `rdiv2`. Hint: for Lolin D32's battery-measurement 100k+100k were used. However, I decided to change the ratio from 50/50% to 25/75% to have a "better" signal. 100/100 might be work as well; didn't test it. ## Things to mention * RFID: In order to avoid buying a 6pin-JST-PH-connector I used 2x3pin. This is because I already had ten of them (see link below). Accidently, on my PCB-layout, I switched the direction of one of these two connectors. However, it's just an visual issue. -* In contrast to Lolin D32, Lolin32 doesn't feature an integrated voltage-divider. That's why on the lower left there's a JST-PH2.0-connector to connect the LiPo-battery. Make sure to connect + to the left und GND to the right. From there you need to solder two short wires (5cm or so) onto the pcb with a JST-PH2.0-connector attached on the other side. This one needs to be plugged into Lolin32. Please note: Lolin's JST-PH2.0-connector needs (+) left side and GND right side. Don't be confused if black/red-colouring of the JST-wires used seems "weird" (black => (+); red => GND). +* In contrast to Lolin D32, Lolin32 doesn't feature an integrated voltage-divider. That's why on the lower left there's a JST-PH2.0-connector to connect the LiPo-battery. Make sure to connect (+) to the left und GND to the right. From there you need to solder two short wires (5cm or so) onto the pcb with a JST-PH2.0-connector attached on the other side. This one needs to be plugged into Lolin32. Please note: Lolin's JST-PH2.0-connector needs (+) left side and GND right side. Don't be confused if black/red-colouring of the JST-wires used seems "weird" because is reversed (black => (+); red => GND). * Better don't solder Lolin32 directly to the PCB. I recommend to make use of female connectors instead (link below). ## Hardware-setup @@ -46,6 +46,12 @@ The heart of my project is an ESP32 on a [Wemos Lolin32 development-board](https * 2x 100k resistor * 1x 130k resistor (can be replaced by 100k) * 1x 390k resistor (can be replaced by 100k) +* 4x JST-PH2.0-connector (2 Pins) +* 3x JST-PH2.0-connector (3 Pins) +* 1x JST-PH2.0-connector (5 Pins) +* Female connector as socket for Lolin32, uSD-reader and MAX98357a +* (optional for headphone-PCB) 1x IDC-connecor female (6pin) +* (optional for headphone-PCB) 1x IDC-connecor male (6pin) ## Where to order? I ordered my PCBs at [jlcpcb](https://jlcpcb.com/). You have to order at least 5 pcs, which is only at 2$ + shipping. It took two weeks to arrive. If you want to have a look at the PCBs first (without having KiCad installed), visit [Gerberlook](https://www.gerblook.org/) and upload `gerber.zip` from the Gerberfiles-folder.