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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst) [5 W9 }5 M1 H
- #include <ESP8266HTTPClient.h>
( T3 |) W8 O% I1 _. s G - #include <ESP8266WiFi.h>& t" [" J; E! \: d# q
- #include <ESP8266WiFiMulti.h>
+ R- Q1 R. ^& E m - #include <ESP8266WebServer.h>
* V% O* h) i5 Y, _8 D! w* w - #include <arduino.h>
E) q- ?0 T6 i6 T0 v$ r! Z - ESP8266WiFiMulti WiFiMulti;
x( Z- _' |# {5 a' Y - ESP8266WebServer server(80);
7 o+ [4 p$ _/ W - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
t5 d% s, _! K( {4 Z( @' Y6 I - ADC_MODE(ADC_VCC);) J* _7 s' Z7 V8 [2 P
- void setup() {
2 o2 D0 i6 f/ l8 s - Serial.begin(115200);
7 S# s) y, ^: y - Serial.print("\r\n\n");
! t# B9 S% |" Q( ?! f6 b5 y0 V - pinMode(2,OUTPUT);
6 P A+ Y8 K1 Y6 H: F - // WIFI
* B' k5 @3 d' y5 E) w - WiFi.mode(WIFI_STA);
$ R, T2 P0 ^+ E7 T. r - WiFi.hostname("Sparkle");
- W7 I% Y& \7 v9 ~ - WiFiMulti.addAP("wifi ssid", "wifi password");
% J% O' |8 c3 @1 Q6 q - int tryNum = 15;
+ C0 q- A9 v i+ Q, \! h3 y - Serial.print("Connect WiFi");
8 O# v, \- r% P7 |) V) ` - while (WiFiMulti.run() != WL_CONNECTED) {
, g8 G% A, |& ?( H - digitalWrite(2,0);) y) |# M1 I1 H% {
- delay(200);
% N6 Y) \( Y" N - digitalWrite(2,1);
& @3 |# e& j% B# g, ]. i" r+ n - delay(300);
& A' u4 C1 _: `8 {( @5 k - Serial.print(".");
; q( _, J% k" M: P% P5 c# T0 y4 k - tryNum--;
4 m6 P0 c2 I# |* u! d0 G" r3 s - if (tryNum == 0) {
- D# p7 N, L$ g - // 1min# x0 s0 F0 X9 d2 P# Z, V1 ^( h
- // ESP.deepSleep(60e6);
0 {0 M0 s, {1 h! d2 l; ? - ESP.deepSleep(0);
8 v6 t7 A2 r: O - }) i/ Q% o2 ^+ t$ o. E
- }
; E& a9 O0 m* X0 `* V& u - Serial.print("\r\n");' Z$ z# J& ~- ]8 |8 Q3 e2 Q, |
- digitalWrite(2,1);
0 D. X' O4 i0 t - Serial.print("IP address : ");' @+ y! S3 ~% G8 |$ C
- Serial.println(WiFi.localIP());
5 ^9 q; U6 g% F3 k9 F - server.on("/", HTTP_GET, [](){
) i1 }+ ~ J( g7 y# d- z( v2 c - server.sendHeader("Connection", "close");
$ c7 S1 B" q5 s5 ~2 P; K/ [6 e - server.send(200, "text/html", serverIndex);
0 l- m1 t& E, b+ U4 W - });
& I m! T8 x- [ R* z4 l+ ^ - server.on("/update", HTTP_POST, [](){; U6 l5 X, u; i7 D6 B
- server.sendHeader("Connection", "close");
8 g- j( k: s" s% }( i3 I, b# f/ [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 }, P5 }) Q5 o4 W5 e0 x# ]) l7 ~/ {
- ESP.restart();" Q9 X4 U% N: \4 s% |
- },[](){7 v/ W2 \2 g2 ~' d" v: B* i
- HTTPUpload& upload = server.upload();; Y. G }* v/ K7 T5 V% S3 S
- if(upload.status == UPLOAD_FILE_START){
# y" R% f6 y& h" ^2 d; J$ O - Serial.setDebugOutput(true);) N: v* n) R9 k3 \) E. T
- Serial.printf("Update: %s\n", upload.filename.c_str());
" F" R$ G" | n0 c: ^& P" s1 R - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ i8 b; o3 k3 ]" ^' T
- if(!Update.begin(maxSketchSpace)){
: K& Z8 u3 T2 T5 c7 _7 I) D8 P - Update.printError(Serial);; J' j) S Q! o) G
- }' k) c+ W" U3 E c. F# X) t
- } else if(upload.status == UPLOAD_FILE_WRITE){( M* \( O6 A1 W7 U' ?5 o. o
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. ?" N& \. H/ I; F3 `
- Update.printError(Serial);( s: D( Q- _! E: Y; v& p6 m
- }
9 U4 W1 V8 T/ Q9 N9 }8 v& l - } else if(upload.status == UPLOAD_FILE_END){, g* P# N/ ~7 \. N/ e+ k
- if(Update.end(true)){
1 D5 T$ u S. g5 [& b - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ K: t0 ^: ~- D4 `8 n6 C
- } else {
% c' M- ^$ S' ]" i- M* N. X - Update.printError(Serial);5 G" f- F% J5 r1 t" F1 J& l) S
- }- K' b/ y* P- P, ]2 q
- Serial.setDebugOutput(false);
5 `" t+ p6 W' G [. {/ j - }
$ @0 g5 S$ t, \1 m5 l3 r1 z - yield();4 h& b! r% B- r8 |3 x
- });. x W$ {. r2 ?- t0 Z& V( w' P7 J
-
( O% j. ~$ N" _6 a5 \+ U; {* x - digitalWrite(2,0);% ] a4 v; z, o% d6 P) g
- mainAction();# w: l" N( i, o" g
- if (digitalRead(0)){
3 ]; U: \( V. |, G S - ESP.deepSleep(0);
8 x% k4 N- U& C0 q @ - } else {
. @3 Z1 ?. a8 V% u0 \) P" N) @5 d+ t- B - server.begin();
3 y5 ]+ Z" _- \. ]( B - }
; v' @9 j0 [$ r - }& l, h7 B3 a; o, `8 o$ w9 {
- void loop() {
3 R @- }/ R% R1 a - server.handleClient();" v+ G* X9 j o( E9 e
- delay(1);- q8 ^: l6 H h4 Y$ h
- }
7 E6 t6 X$ J! Y! d: D" e$ Z - String doGet(String url){, o! D7 ^/ K8 ]4 F1 f8 G$ z
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 C$ h" t4 k* l& @3 \+ U% Q9 ~+ ^ - HTTPClient http;
; T7 M' W) g" i - Serial.println("[HTTP] begin...");5 K0 x& [$ p( g7 |6 k+ }" X
- if (url.startsWith("https")) {
[/ m' Q. q& @( D" @ v9 G+ \0 Z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");/ C( X4 y/ P4 j. E$ |
- } else {" Y0 Y: `- Z0 S; Z2 L0 w- h) J- K
- http.begin(url);4 q' W# ]7 j) {; v
- }
& D' {7 g- y$ |, g - Serial.println("[HTTP] GET...");0 \3 n+ X; I- K! X* x
- int httpCode = http.GET();
) {" `' C. L8 z - if (httpCode > 0) {2 _5 Z$ S9 W4 g) m ]! C+ X
- Serial.printf("[HTTP] code: %d\n", httpCode);
/ x# j! Z0 C; }' Z - if (httpCode == HTTP_CODE_OK) {
! A7 O6 x9 z' U( W7 t7 p! i - String payload = http.getString();% t5 u1 m- V t: v8 V$ N% E
- Serial.println(payload);
' u& P3 f% j- } - Serial.print("\r\n");
! _0 P) |* @+ ^- I2 H - return payload;3 x' h; B5 M b1 I$ N; U$ M
- }
( z7 x% f- I0 C - } else {
! Z# [ Z% I" c - Serial.printf("[HTTP] GET... failed, error: %s\n",
, c2 Q ^* p$ g' W7 M - http.errorToString(httpCode).c_str());
3 b8 r# A! \+ P9 J: Z# m$ t; a - }3 M* F$ m3 ?* h) d! K6 V5 Z
- http.end();' |. g$ @0 S5 s+ V! Y$ J/ |
- return "";
8 K4 i. C W4 d7 f* k - }
4 p, v' I" J6 l3 [3 G0 B# B1 y& _ - }
( l8 L: ^% a2 F9 `3 I; ^ - void mainAction() {% |2 K7 ~" K; Y' D- C
- // 发送请求5 u* X/ _0 d3 C4 Z
- doGet("http://google.cn");! h0 @5 a( k6 i t0 ^
- }
/ w1 x6 A( U! ?# |& R. Z' X5 V
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