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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)
% A/ k# J2 U- Q- #include <ESP8266HTTPClient.h>
4 o- w' X7 F' F- J - #include <ESP8266WiFi.h>2 L' S7 D5 ?7 F ^7 c/ l
- #include <ESP8266WiFiMulti.h>
9 \! z, K z9 ^ - #include <ESP8266WebServer.h>: S! y* U: z8 F3 t6 W o+ v
- #include <arduino.h>
5 b! S- A2 c2 t" t - ESP8266WiFiMulti WiFiMulti;
6 g: y$ [' u0 `1 { - ESP8266WebServer server(80);
; n$ n5 g% y/ q* J- v, }! G - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ v9 @; c* g& b/ d0 z - ADC_MODE(ADC_VCC);
- G% Q* d. w; p- o6 J# q7 W - void setup() {8 I4 a. R$ z4 P+ n- n0 Z
- Serial.begin(115200);% J9 p8 Q5 m; v/ K9 N, i' u7 \% {
- Serial.print("\r\n\n");
" a3 z/ O5 H$ O! T% ]& ^' Y - pinMode(2,OUTPUT);+ Z) M. [4 x; R2 F2 u
- // WIFI
* o. B; Y% T% S8 O1 h$ H6 p - WiFi.mode(WIFI_STA);
. B9 n6 F% I4 j( g G - WiFi.hostname("Sparkle");
# X$ i- E5 ], N; H+ g/ `2 P - WiFiMulti.addAP("wifi ssid", "wifi password");6 \- D& e' s- g
- int tryNum = 15;
) S; E+ Z; Y$ D - Serial.print("Connect WiFi");
8 Z5 }/ E$ I3 ]& |9 f- V; o - while (WiFiMulti.run() != WL_CONNECTED) {) W! b, \7 D9 l3 n) e2 ?5 P$ u
- digitalWrite(2,0);
) `- D8 I4 k# W* i3 Q/ s/ j5 ~ - delay(200);
, V1 h6 M2 t( r' f" o( R+ c - digitalWrite(2,1);
9 g- ^& g. A6 D% t! x5 ?6 d - delay(300);
2 J3 a5 J4 k- g; d5 { _/ e - Serial.print(".");
5 n8 M# N, ]. M- T5 B+ j( B - tryNum--;
( r; h, I- s9 c3 ]# O- W& Q+ G - if (tryNum == 0) {9 \9 i7 v' Y; [1 y" D
- // 1min# [9 |" ^. ^$ a
- // ESP.deepSleep(60e6);8 I5 l- H) ?' R6 l$ w5 U. f% D
- ESP.deepSleep(0);
0 ?/ A# V+ u9 o! e - }
! u5 N+ }2 w; b0 W& V* O - }3 d) ~3 v: I! F6 {& O9 o( J1 q' L4 {
- Serial.print("\r\n");
0 a! p1 _* ]6 i, a- L8 l% V2 E! B - digitalWrite(2,1);
9 |! t) ~ P! Z( O& W/ | - Serial.print("IP address : "); A" L* R% K% I$ @6 p! S
- Serial.println(WiFi.localIP());
% i8 Z8 G$ h1 k/ E; c - server.on("/", HTTP_GET, [](){
% {3 z& K) Y3 t - server.sendHeader("Connection", "close");
0 K6 E+ H# {9 w - server.send(200, "text/html", serverIndex);
0 Z0 ~: k+ a, A( J$ @* d! D* u+ i - });4 O8 }# L! E' w) l6 r5 T Y3 l
- server.on("/update", HTTP_POST, [](){8 l, }* A. e, c
- server.sendHeader("Connection", "close");+ {7 m. U1 G7 d. a
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 w" i' {& }8 L6 `
- ESP.restart();
# L+ V4 v' k y3 K4 V9 f - },[](){
0 W, O) P# f: A/ { - HTTPUpload& upload = server.upload();
# z. J I2 B, O - if(upload.status == UPLOAD_FILE_START){
! X+ Q$ ?. O# v0 M+ |9 K& Q - Serial.setDebugOutput(true);+ J' d ~, N/ B* ?1 V( ?
- Serial.printf("Update: %s\n", upload.filename.c_str());
" w% z" N0 ~# w; M9 X - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( E w1 c6 x% Q5 Z - if(!Update.begin(maxSketchSpace)){4 r: Z6 K. J, `! l9 t5 g8 S: _2 ?
- Update.printError(Serial);
+ _9 v; d6 N- Q" I5 E3 G7 f. _ - }
$ S5 H. [( ^( W0 q5 d1 t - } else if(upload.status == UPLOAD_FILE_WRITE){
& ^3 S5 m, C) l" u: ? - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
I0 ?! }* w, v: V1 Y" s9 Q - Update.printError(Serial);
! v _8 B, | ? - }
' U+ L+ Y" C: }# E - } else if(upload.status == UPLOAD_FILE_END){* \ I n0 F: J1 \6 Q; K- m
- if(Update.end(true)){- ~' s. r% O8 W) R$ K' P
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
- B4 k9 F" V) T' _ - } else {
1 \- o4 F2 w) l: x: X; D2 x+ g* m - Update.printError(Serial);- D" N( d5 A$ U. {+ E
- }
' h1 U% u, b! R: v: j - Serial.setDebugOutput(false);
8 `$ t6 q' u, V2 O/ b - }; }; \" l6 h8 m8 M1 ~" d7 ^- B
- yield();
5 p1 {: Q& ~6 | - });
$ n& E& q7 a s. W8 c -
7 y, h$ P5 }- O5 U6 g% I - digitalWrite(2,0);, G- M: G* h; ^9 Q8 a! z
- mainAction();
1 x& v6 E/ O) y7 [/ Z- E! ?$ T - if (digitalRead(0)){! w! |+ L' v& |9 b( V. R+ \
- ESP.deepSleep(0);9 Z1 A6 e& ^* ?9 h
- } else {
2 ?! h! V: b7 G - server.begin();
0 J0 l; l6 N' o6 J. E) h9 S4 I - }
( N* K; N1 W4 y$ A4 N, V, E - }
7 m" \0 W+ [7 s: B: n2 a - void loop() {$ ^+ l( I, v6 @3 p1 u
- server.handleClient();
& @0 j- `! J( {3 R& Z4 { - delay(1);
; ]. J% d; {4 I) s( r - }0 {$ i' R. s9 j. i `2 C2 J" V- O( c: Q# }
- String doGet(String url){% M: s: B. U+ x. F" |* {
- if ((WiFiMulti.run() == WL_CONNECTED)) {
' K' ^, d+ Z2 x4 w: h% F: y - HTTPClient http;
. _9 U6 a$ e2 f0 o- h& }& q8 S- F - Serial.println("[HTTP] begin...");6 p8 A- W5 S8 k5 X+ A0 p7 H
- if (url.startsWith("https")) {
2 H5 m }7 a0 G# d, m6 @2 ]3 N - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% q u2 E4 L k. B7 @
- } else {
! ?" w0 e' A" |/ g6 \$ M6 X# `! q - http.begin(url);. U5 \! o8 N. A6 Z1 U/ f2 _$ e
- }
- V0 \1 ]3 z$ v6 O! ?* h5 ` - Serial.println("[HTTP] GET...");4 W4 F! i& O( i
- int httpCode = http.GET();0 Y0 A7 Z% W0 s- }/ Y. X
- if (httpCode > 0) {
( j2 |4 D' E' u* q+ c% ~6 U0 X - Serial.printf("[HTTP] code: %d\n", httpCode);% [+ a ]+ j) B4 i
- if (httpCode == HTTP_CODE_OK) {6 f: B+ [" S6 J1 U4 U q. j
- String payload = http.getString();
+ t4 a8 z% o+ @: ~: b9 d - Serial.println(payload);
# a) r3 d' x) [1 }- Z0 K j - Serial.print("\r\n");* `& e2 U K: K; W; _8 s5 C
- return payload;
7 C# U7 U. A) v* q" O, T$ Z" k - } B& |3 X n4 E1 R
- } else {
. I- D0 Z3 D5 [1 S5 z8 W - Serial.printf("[HTTP] GET... failed, error: %s\n",- x0 J8 z% u% ~8 q' E4 c6 d" l
- http.errorToString(httpCode).c_str());
" `3 Z; v% C9 u# l. L6 J - }+ w4 c. u/ N. ?) ^7 ^$ N
- http.end();
. s, Z* ~# Z5 ~5 @3 r6 T - return "";
0 s; K( D7 l D) X7 P - }9 T0 n6 C ]8 d0 V& E( s E* b/ C
- }
3 l* H" U4 F/ X. C& h - void mainAction() {
; g9 t6 r5 L; s8 m' S - // 发送请求, I6 U+ C+ M; W9 n6 Y- }1 T
- doGet("http://google.cn");# W5 G5 R& o! ]- K- V) _* l
- }
g" ^; D6 {1 W4 T" r' F% w
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