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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)
: q- g2 z6 z1 Z- #include <ESP8266HTTPClient.h>
/ F; V8 x/ E% d - #include <ESP8266WiFi.h>+ L Z& h1 I6 G, I) s4 U. G
- #include <ESP8266WiFiMulti.h>
6 m5 ?; f1 S% A4 _5 K1 X - #include <ESP8266WebServer.h>
1 a5 Q7 s$ W d( w1 t$ Q" e - #include <arduino.h>
( Q2 d: k" A/ H0 d8 l, E - ESP8266WiFiMulti WiFiMulti;7 B) [$ ?/ @; f. T* ~
- ESP8266WebServer server(80);
% X3 z+ [6 s) s9 u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 I" w" [/ n3 m/ G( E
- ADC_MODE(ADC_VCC);
3 |6 h$ N1 M5 p" H7 O - void setup() {
- y9 t* J* c) u: {- H2 G' w - Serial.begin(115200);
- {' L* h! v, r4 T% k5 M& V4 G - Serial.print("\r\n\n");+ V5 n; W) w g- u: G- o
- pinMode(2,OUTPUT);; d% H- b' j# d) [) n( v L% U. U
- // WIFI
0 n; ]" O c, B- D, h/ J# @+ Y - WiFi.mode(WIFI_STA);& I- ?( Z+ M- B b% A& {
- WiFi.hostname("Sparkle");
7 f6 C/ i, |0 Y) u - WiFiMulti.addAP("wifi ssid", "wifi password");) p. D1 P, u g/ n6 q: {) ]
- int tryNum = 15;
e! R9 N" ^6 N6 d; G+ N7 z - Serial.print("Connect WiFi");
: C1 F3 t$ e/ m0 J3 n- V3 E" k/ | - while (WiFiMulti.run() != WL_CONNECTED) {4 D4 e& P: }# H* y
- digitalWrite(2,0);9 o& e0 o3 a2 z% k& ^' |3 u" p) u
- delay(200);
+ G( r3 E* s% j8 z7 F+ ~: r/ J0 Z - digitalWrite(2,1);* K) T( |% W" t- J% J# X/ L5 K
- delay(300);
8 B4 r% c" K" A0 K - Serial.print(".");) z# K; }+ k Z3 i6 A
- tryNum--;
1 d# P& ?( `% Z, c - if (tryNum == 0) {- ~# q% N" |4 S6 q
- // 1min9 E# j8 `5 y6 r+ D' p9 L+ K5 o4 e
- // ESP.deepSleep(60e6);9 O! x% Q& l+ ^6 g5 i: p4 l
- ESP.deepSleep(0);
) V# n. R, l0 X) l - }
) g, @+ M0 v1 Y& E, I - }
/ g3 V( _+ T$ K, }1 Y, H - Serial.print("\r\n");' e/ t" g) R0 K, i" G
- digitalWrite(2,1);
- q9 L5 Y: k0 r( P! t) \% ]: }+ W - Serial.print("IP address : ");) |* ]2 u* `( _$ T
- Serial.println(WiFi.localIP());
- J" ~4 Q1 \) n0 d - server.on("/", HTTP_GET, [](){
0 [2 x6 |4 y& D m( S - server.sendHeader("Connection", "close");
4 e# S6 i% ?/ L1 t - server.send(200, "text/html", serverIndex);7 u* u. s& ~9 ]4 m
- });5 [) h+ y2 c* H5 |, m7 c9 R
- server.on("/update", HTTP_POST, [](){5 f" e. i! U: r" e8 W) q
- server.sendHeader("Connection", "close");
* `$ j9 g( f# M" G2 ]) }9 G0 h, h - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 H- g( O; p- Z3 n- o
- ESP.restart();
% Q4 P! s, B' ` - },[](){
% p* l! O, ?3 j: C- c - HTTPUpload& upload = server.upload();
/ R& t7 S4 G, ]' Z9 ^3 J0 C- P" m' t - if(upload.status == UPLOAD_FILE_START){& j1 E! O, i$ J5 V3 g- V# ^* W
- Serial.setDebugOutput(true);
2 ~( i; o9 `0 t - Serial.printf("Update: %s\n", upload.filename.c_str());
( v, n4 Q! V! @$ A; d; X8 \1 R - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. N) U. B# Z! y$ C5 C- {
- if(!Update.begin(maxSketchSpace)){, Q# H! t/ A% [, ]
- Update.printError(Serial);; v+ F1 x/ ?! g7 v% o2 }
- }
! c8 l6 M9 W% [ - } else if(upload.status == UPLOAD_FILE_WRITE){ u1 e# m, Z# _: D! w+ W- r3 H( T
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# v1 T$ |" Y" \& _$ Y9 T
- Update.printError(Serial);
8 m4 t5 ]& Z0 i9 r( O - }
' t* j7 J( T! ~6 ^. O2 v3 ?1 C - } else if(upload.status == UPLOAD_FILE_END){" \. j$ L4 ]3 J4 } z7 A, L e
- if(Update.end(true)){
4 q: u5 p; K4 b% O - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ v J' l* I$ [$ ]* p9 e - } else {4 H3 s8 _1 i6 E% l1 v. Y* }; r
- Update.printError(Serial);4 O. j! o b5 D! R" ~0 {# m( b; k& F
- }! w) \- A+ J9 {9 Q& d8 t6 W, p
- Serial.setDebugOutput(false);7 ]9 {1 S9 f- D+ _6 E7 J, [6 N
- }! f' G4 z4 C0 ~" \6 E
- yield();5 [; X* ^8 e" x
- });
' T! `3 n) q3 `6 q! c1 Q" Q -
. w( m6 {7 m: |, e( s) C( p - digitalWrite(2,0);
* n) x0 V) f6 M; W. q# S - mainAction();# j5 P3 r& L6 e" L" A% ^ x7 ?
- if (digitalRead(0)){# W5 ]& H! m& d4 s
- ESP.deepSleep(0);/ ]) l% z M. N* F0 y" f
- } else {- ^& d% A: J* I4 p- j1 d0 V7 U# @! v
- server.begin();
5 b7 J7 e: |& L# y& h - }/ ?$ I2 ?. ?0 R9 @/ S! U T. \3 L
- }
N( K; D& p& L" m+ W - void loop() {
n5 F! O! a; i - server.handleClient();
$ S# z- o9 N2 V5 a; A3 M+ @( v - delay(1);
- C" N+ \2 Z: @% s" e8 R - } E! |$ f( o9 \/ {+ s, J$ T
- String doGet(String url){# |5 X# `" F- Z* `, G# y7 n/ X
- if ((WiFiMulti.run() == WL_CONNECTED)) {5 x& l/ L d' y1 X) d
- HTTPClient http;
3 I: M' y) D! v# b, `* `; V - Serial.println("[HTTP] begin...");
$ l2 h0 N! u/ ]2 s9 K f - if (url.startsWith("https")) {
# ^5 A2 R5 n6 a) T! f: E t - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, ^ w8 \4 _5 Q' J6 ? - } else {% c4 j) x. w7 V. |5 F2 I, F$ `
- http.begin(url);2 U- |% t# _. ^4 v- E, j: z
- }& E9 x4 t5 {8 s+ P) {; ~6 M
- Serial.println("[HTTP] GET...");& N% X" U; w% R/ r& R3 Z8 J
- int httpCode = http.GET();5 x( V: x# o/ V4 c% B- L# H
- if (httpCode > 0) { l! x9 b W) ^' @# `/ J
- Serial.printf("[HTTP] code: %d\n", httpCode);- n* Z# w+ g* b+ y8 R& a5 o
- if (httpCode == HTTP_CODE_OK) {2 h1 |. L* ]* b, V" x" u Q
- String payload = http.getString();
. x( ^' |) k4 {! e6 O# F2 k' k - Serial.println(payload);! t0 S6 y( I* R5 V
- Serial.print("\r\n");
" J8 a+ D2 O0 f8 j$ G - return payload;
) W: b9 ]/ W" `4 N! g - }- |; L2 ]# m' p- V
- } else {, C% T/ _: b R
- Serial.printf("[HTTP] GET... failed, error: %s\n",
/ z; b) ^4 j9 r& O# @ - http.errorToString(httpCode).c_str());
- d9 u7 L* x7 g. W; S5 m - }$ A% ]9 c7 p; g2 V h0 u5 ?1 a
- http.end();
5 Q& a [ g. k! Z. F2 N" W - return "";
# s/ c G+ O/ `7 t1 M% z - }9 W: F4 U: ]' Y, {9 V9 I; U
- }' ^( I, c1 d5 q# o: k
- void mainAction() {
& @, W. e1 v* K' U! _2 H5 {" V - // 发送请求
- A7 t( X$ q1 j - doGet("http://google.cn");* j/ U$ y4 t! J( }/ G( @! ^
- }/ z4 j7 r3 ~0 G% P) f
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