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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)
v; i! A1 A# J- #include <ESP8266HTTPClient.h> d1 ]/ ]- g3 c
- #include <ESP8266WiFi.h>
; w9 \4 |. ~/ d @ j' J - #include <ESP8266WiFiMulti.h>3 ]' A- P( c. l. i
- #include <ESP8266WebServer.h>* j+ \7 `9 h& A+ I9 n
- #include <arduino.h>
; f+ @5 H7 ?; \3 |% x - ESP8266WiFiMulti WiFiMulti;( [9 x( K5 y- O$ i' J5 p
- ESP8266WebServer server(80);
5 |0 R0 ~/ K4 q" j: ~) u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
9 y8 m; Q9 c3 h5 h+ a - ADC_MODE(ADC_VCC);
) B+ |% `$ d, G# l4 S5 K6 m - void setup() {
f& w; g# N. J/ U - Serial.begin(115200);( s6 u% C( c* }
- Serial.print("\r\n\n");
# x: D& U/ T8 {& X( w2 t - pinMode(2,OUTPUT);
# Q2 ^8 O4 [' W1 F - // WIFI7 }% X- o" x1 b+ t8 M5 H6 Z$ [5 ~
- WiFi.mode(WIFI_STA);
9 v6 r% I3 Y7 b4 D& u4 @) F - WiFi.hostname("Sparkle");* b4 k2 _/ Y! n2 Z( E
- WiFiMulti.addAP("wifi ssid", "wifi password");7 \# ]/ a' U; [& ~* N
- int tryNum = 15;
5 g# y) z. t- P4 T y$ o - Serial.print("Connect WiFi");
' ]: K7 q4 w) a G8 w$ C8 C - while (WiFiMulti.run() != WL_CONNECTED) {
. T4 }* }- h' _4 b& R - digitalWrite(2,0);0 l4 g& J( N# a* T) ^2 W. V2 ]0 F
- delay(200);
: x- J6 C, f2 K% d0 F - digitalWrite(2,1);
+ ~( x, z' g3 _$ K {; C5 A j6 j - delay(300);
1 _/ O- Y. w1 _" G. a3 q - Serial.print(".");
4 h& k! o! C7 Z1 W9 j1 X - tryNum--;, I% c. |; z9 H. a" c; ^% W
- if (tryNum == 0) {* R- [9 }9 F. `" N( }1 r( b
- // 1min) |$ h T" G; X. b8 ~; x# Q+ {
- // ESP.deepSleep(60e6);
8 ~2 h/ U' o' f/ ?; B, t+ O - ESP.deepSleep(0);
7 i& ?- s, G' l8 d& A! P) w M - }
, k+ R" P, P7 \: c - }
$ A/ T2 P/ \- H0 v6 [: J) C - Serial.print("\r\n");
. }( H& j( j* M1 h - digitalWrite(2,1);
$ t' v. `1 T6 w, P1 u# c - Serial.print("IP address : ");% W" D! C8 f+ S E4 C5 M
- Serial.println(WiFi.localIP());- R. S: `6 q q) T- \9 \- a0 N- W) Q l
- server.on("/", HTTP_GET, [](){& n! O i' C. H( u% B5 | B
- server.sendHeader("Connection", "close");3 f1 t' C" P; P' o+ Y
- server.send(200, "text/html", serverIndex);
8 [9 Y1 J2 K J - });( b( e1 u4 ]7 w
- server.on("/update", HTTP_POST, [](){
) A6 p& w( c$ Z% {4 I3 c% |6 s - server.sendHeader("Connection", "close");3 b( t, v1 X) Q! {: ]8 |( q
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* I: @7 [; [; c7 C' h7 M - ESP.restart();
0 W& _( }) u! o4 P* A - },[](){
% \# h! z+ ]( d8 |' q - HTTPUpload& upload = server.upload();" ?+ v2 `8 O' x1 H( X
- if(upload.status == UPLOAD_FILE_START){
; Y- I) S3 o9 Q% I+ S& W; ~0 Y - Serial.setDebugOutput(true);
5 E7 I0 O1 ^/ _. G! q/ v1 P' ]$ A - Serial.printf("Update: %s\n", upload.filename.c_str());
' \2 K* S1 o( n# V' C; a - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 M: W) N$ T) x5 O, P# l. W$ A
- if(!Update.begin(maxSketchSpace)){
& R, A+ g) i- \6 Y$ f1 K5 v - Update.printError(Serial);
9 p4 G, V* j: R, }- e - }
1 a: o j# H( \1 S3 [1 b7 T4 m - } else if(upload.status == UPLOAD_FILE_WRITE){! C6 |: I8 a7 ~* B
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
- }. E1 C& S' I3 \2 U3 ], _% y - Update.printError(Serial);
2 I! C4 U" m% U. c8 w; z) v - }
; f: p' E% C/ f - } else if(upload.status == UPLOAD_FILE_END){0 L( s8 u# k# _ j9 K$ i* I' S
- if(Update.end(true)){
, Q3 f5 Z( B$ K$ i! V - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. ]5 j8 A n! ^; c( N3 Y% ~ - } else {. m& [( X+ C% T! g1 s* m+ q. F
- Update.printError(Serial);
. D+ \$ R9 u6 a' N - }1 N3 M* E, T, m- @
- Serial.setDebugOutput(false);1 t6 ^- l O/ o! w! I4 Y9 o
- }5 ]8 E! F! ?! e: ]( [# L
- yield();0 |5 v- b: D% o; h
- });
/ t9 x: A# V3 y$ a- o -
}2 } u# d8 H, ?' _! Q7 ` - digitalWrite(2,0);
" _9 d! m; C' J7 g6 ^2 @ - mainAction();0 s& P& H9 o5 A& k- S5 I
- if (digitalRead(0)){% r, k2 @( o9 h( V
- ESP.deepSleep(0);2 r6 Z) ~ l* }: L: f4 w. M
- } else {. p0 R9 F: v7 m/ X
- server.begin();& a' v2 l, M/ J E
- }
% @- l: F8 u5 e3 R' d1 K - }# I5 R# Y6 n" l( X( V/ k
- void loop() {9 C, L+ L0 E& |4 I: R( P M7 L
- server.handleClient();- O! f# R) C) X- s
- delay(1);9 Y9 p( J+ Z6 |& _% l3 q6 A4 S
- }- ]) d8 H& f0 S2 F$ B' m& ~
- String doGet(String url){
1 `4 ]/ r0 z6 M9 { - if ((WiFiMulti.run() == WL_CONNECTED)) {1 |; T, F7 A A% Y8 W
- HTTPClient http;" N; A: D7 R6 Y. v% S- P
- Serial.println("[HTTP] begin...");
( r m2 N+ g( }, f& ~! p+ b1 Q - if (url.startsWith("https")) {7 l; l6 W3 W2 Z" j' y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% @5 l. D, G' A; d9 A% s9 b9 O
- } else {
5 v, z6 i1 K: {4 O - http.begin(url);2 O3 x$ M2 D3 o' A
- }
* ? w" _* x2 |( Q - Serial.println("[HTTP] GET...");2 x1 f4 Z. X8 w
- int httpCode = http.GET();+ W% C$ F" L- O* P, \: G0 G2 o
- if (httpCode > 0) {
* s4 ]0 W) K# r9 ] z% v, f - Serial.printf("[HTTP] code: %d\n", httpCode);; n5 L9 H5 A# A. ` E& L
- if (httpCode == HTTP_CODE_OK) {
! X! y% Z1 D4 O9 Z3 M' q) z g - String payload = http.getString();
# E/ Z5 y1 S5 E2 x4 P - Serial.println(payload);
" f1 _/ Y3 u: C - Serial.print("\r\n");6 c$ O7 |8 ^" j0 M5 ^. I- u* Y8 D
- return payload;
. e5 D& w) X$ X% O - }
+ D/ q( r4 W5 |( Y - } else {1 H& L8 N! ?/ f. ? I
- Serial.printf("[HTTP] GET... failed, error: %s\n",
6 ^2 ~7 M0 ~6 F9 V/ Y5 w - http.errorToString(httpCode).c_str());- n$ g3 }2 J6 U; k. L! E
- }- g5 W) Q3 X9 {! g) e$ |0 _8 u
- http.end();+ q3 w7 S& K1 H3 A
- return "";3 U" U n% t, Y7 B4 l
- }* U7 M9 w% Z( J' b) _- q6 o$ c
- }
: p5 K' T" f/ r/ p' d - void mainAction() {
9 ] D7 y8 j& T: h2 N: p - // 发送请求
6 V4 T8 ^; X& d: J, V$ \ - doGet("http://google.cn");& u7 U: N; Z; ? a
- }3 Z. R4 F# c) ?. i: H& f) }* U+ p& c
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