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Atmega328 Digitrainer v1.0

Atmega328 Digitrainer v1.0

Created by Wijnand on 2020-08-18 07:55:49

2 Layer Board - 37.6717 sq in (9.7638in x 3.8583in) / 24304.27 sq/mm (248mm x 98mm)
$122.81 per set of 4 ($3.26 per sq in)

License: CC-BY 4.0

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IoT ESP12/RFM95 v1.1

IoT ESP12/RFM95 v1.1

Created by Wijnand on 2020-02-05 15:04:19

2 Layer Board - 2.6680 sq in (0.9200in x 2.9000in) / 1721.29 sq/mm (23.37mm x 73.66mm)
$10.38 per set of 4 ($3.89 per sq in)

This design (a RFM95W controlled by an ESP12F) is intended as direct replacement for the iot_lora_v4.2
board (same form-factor, same interface connector).

The board is tested with the Arduino IDE and the
MCCI LoRaWAN LMIC library mcci-catena/arduino-lmic
(see also:
IBM LoRaWAN in C (LMiC)
).
and works perfect.

A second set of PCB designs (power supply/sensor boards) are already designed and tested or planned as
piggyback/hat for this iot_lora_wifi_esp12 board. Power alternatives will be: solar cell, CR2032, 2 x AAA,
supercap. Controlled by: the TPS61291, TPL5111 and/or TPS22860.

BOM
1 x RFM95w/868MHz
1 x ESP12F
2 x 10K (I2C pull up)
1 x SMA antenna connector
1 x pin header 2x7

ATTENTION: The update to v1.1: added a reset button for more flash comfort.

License: CC-BY 4.0
Project URL: http://alf4all.demon.nl/engineering/topics/targets/Arduino-Pro-Mini_RFM95/index.htm

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IoT Sensor/Charger v3.0

IoT Sensor/Charger v3.0

Created by Wijnand on 2020-01-29 12:11:13

2 Layer Board - 2.4932 sq in (0.9200in x 2.7100in) / 1608.51 sq/mm (23.37mm x 68.83mm)
$9.85 per set of 4 ($3.95 per sq in)

License: CC-BY 4.0
Project URL: http://alf4all.demon.nl/engineering/topics/targets/Arduino-Pro-Mini_RFM95/index.htm
Tags: iot, sensors, charger

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iot_harvester_sensor_v3.1

iot_harvester_sensor_v3.1

Created by Wijnand on 2020-01-18 11:41:36

2 Layer Board - 2.4932 sq in (0.9200in x 2.7100in) / 1608.51 sq/mm (23.37mm x 68.83mm)
$9.85 per set of 4 ($3.95 per sq in)

License: CC-BY 4.0
Project URL: http://alf4all.demon.nl/engineering/topics/targets/Arduino-Pro-Mini_RFM95/index.htm
Tags: iot, power, harvester

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MEGA_programmer

MEGA_programmer

Created by Wijnand on 2020-01-14 19:54:27

2 Layer Board - 8.6185 sq in (4.0030in x 2.1530in) / 5560.31 sq/mm (101.68mm x 54.69mm)
$30.85 per set of 4 ($3.58 per sq in)

E(E)PROM (2708..27512) programmer. Piggy Back for Arduino Mega 2560. Design is not ready and tested yet.

License: CC-BY 4.0
Project URL: http://alf4all.demon.nl/engineering/topics/projects/prom_programmer/index.htm
Tags: arduino-mega-2560, e(e)prom-programmer

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power

power

Created by Wijnand on 2019-12-26 16:53:27

2 Layer Board - 4.9406 sq in (1.7187in x 2.8746in) / 3187.48 sq/mm (43.65mm x 73.01mm)
$18.72 per set of 4 ($3.79 per sq in)

CHE-1 power

License: CC-BY 4.0
Tags: che-1

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P2000 ROM-cartridge 4x2732

P2000 ROM-cartridge 4x2732

Created by Wijnand on 2019-11-13 15:33:52

2 Layer Board - 12.9250 sq in (3.1536in x 4.0985in) / 8338.69 sq/mm (80.1mm x 104.1mm)
$43.56 per set of 4 ($3.37 per sq in)

Not tested yet!

License: CC-BY 4.0

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IoT Pro-Mini/RFM95 v4.2

IoT Pro-Mini/RFM95 v4.2

Created by Wijnand on 2019-10-09 11:08:58

2 Layer Board - 2.6680 sq in (0.9200in x 2.9000in) / 1721.29 sq/mm (23.37mm x 73.66mm)
$10.38 per set of 4 ($3.89 per sq in)

This design (a RFM95W controlled by an Arduino Pro Mini) was my first step in the world of IoT.

The board is tested with the examples of the Matthijs Kooijman
LMIC library and works perfect.

It's also used in the IoT workshop
LoraWAN Grundlagen
of the iot-usergroup.de.

A second set of PCB designs (power supply/sensor boards) are already designed and tested or planned as
piggyback/hat for this iot_lora_wifi_esp12 board. Power alternatives will be: solar cell, CR2032, 2 x AAA,
supercap. Controlled by: the TPS61291, TPL5111 and/or TPS22860.

BOM
1 x RFM95w/868MHz
1 x Arduino Pro mini
2 x 10K (I2C pull up)
1 x SMA antenna connector
1 x pin header 2x7

ATTENTION: The update to V2.0: ADC6 and ADC7 (analog exclusively) are not connected
to JP3 anymore but PB0 and PB1 (possibility for soft serial). The HF part has now a switch to SMA
or spring antenna and added are GND planes on both sides.

ATTENTION: The update to V3.0: (on request) added a JST PH 2mm power connector
(for RAW and VCC) and a silkscreen update.

ATTENTION: The update to V4.0: added the footprint (SOP-8) for AT24CXX EEPROM to save TTN EUI's and Key's.

ATTENTION: The update to V4.2: added footprints for 2 x IPEX-Connector and extra debug LED (D1) on 10.

License: CC-BY 4.0
Project URL: http://alf4all.demon.nl/engineering/topics/targets/Arduino-Pro-Mini_RFM95/index.htm

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IoT Prototype Board v1.0

IoT Prototype Board v1.0

Created by Wijnand on 2019-09-08 11:52:12

2 Layer Board - 2.4932 sq in (0.9200in x 2.7100in) / 1608.51 sq/mm (23.37mm x 68.83mm)
$9.85 per set of 4 ($3.95 per sq in)

License: CC-BY 4.0
Project URL: http://alf4all.demon.nl/engineering/topics/targets/Arduino-Pro-Mini_RFM95/index.htm
Tags: iot, prototyping

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bme280_small

bme280_small

Created by Wijnand on 2019-07-04 20:22:05

2 Layer Board - 0.3798 sq in (0.2756in x 1.3780in) / 245.03 sq/mm (7mm x 35mm)
$1.52 per set of 4 ($4.00 per sq in)

License: CC-BY 4.0
Project URL: http://alf4all.demon.nl/engineering/topics/targets/Arduino-Pro-Mini_RFM95/index.htm

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iot_battery_sensor v2.0

iot_battery_sensor v2.0

Created by Wijnand on 2018-12-11 09:25:06

2 Layer Board - 2.4932 sq in (0.9200in x 2.7100in) / 1608.51 sq/mm (23.37mm x 68.83mm)
$9.85 per set of 4 ($3.95 per sq in)

This iot_battery_sensor board v2 is intended as piggyback/hat for the iot_lora board.
(see: iot_lora_v4)

Power alternatives are: CR2032/2xAAA controlled by TPS61291, TPL5111 and/or TPS22860.
The booster (TPS22860) can be bypassed.

BOM
1 x 10uF
1 x 3,3uH
1 x TPS61291
1 x 22uF
1 x TPS22860
3 x 0.1uF
1 x TPL5111
1 x 56K
1 x 10K
2 x 4K7
2 x pin header 1x1
2 x pin header 1x2
1 x pin header 1x4
1 x pin header 2x7
1 x AAA box (€0.57)

Connections for sensors are:
GPS6MV2, (€4.15)
BME680 (€9.03)
BME280 (€2.67)
BMP280 (€0.72)
BMP180 (€0.58)
MAX44009 (€1.54)
TMP35GT9Z (€1.25)
DS18B20 (€0.80)

ATTENTION: Added to version V1.1 are connections for the sensors CCS811 and MAX44009.

ATTENTION:The new board (v.2) is tested and works fine.

License: CC-BY 4.0
Project URL: http://alf4all.demon.nl/engineering/topics/targets/Arduino-Pro-Mini_RFM95/index.htm
Tags: iot, lora, battery-sensor board

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