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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)0 b) m# _ G! d" D4 T# T) F
- #include <ESP8266HTTPClient.h>) C, F* A# G& `* j. i. f& P4 r
- #include <ESP8266WiFi.h>/ F" z9 S& j3 |* {5 E M4 M( \2 W. G
- #include <ESP8266WiFiMulti.h>! ^! a, k: {1 h+ y3 j' @) a
- #include <ESP8266WebServer.h>* w3 m5 J' S: p4 y, M/ A
- #include <arduino.h>
0 _: ~# O$ c$ }- l( S( M - ESP8266WiFiMulti WiFiMulti;
6 T8 T$ ]; M& ?( S - ESP8266WebServer server(80);0 z: G1 Q" I& v+ h, F7 R& `
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) Y/ ^2 |1 I2 e1 R' [2 Z( |
- ADC_MODE(ADC_VCC);
8 s' j9 y) s# [ h0 H2 r - void setup() {
" @/ J3 p; r" L% V$ l: E - Serial.begin(115200);: l+ N8 d1 i6 A
- Serial.print("\r\n\n");
$ t; I- n' E. ?6 |' f6 X: k - pinMode(2,OUTPUT);* R& }/ ]: ^# G& U4 s8 s# t" _
- // WIFI
1 I% {+ T% c, {: t. I* Q - WiFi.mode(WIFI_STA);/ w6 k0 R6 _" w+ J$ g
- WiFi.hostname("Sparkle");: s% e0 d V* ~) p6 m R( K
- WiFiMulti.addAP("wifi ssid", "wifi password");! j" n6 R4 ], y" G- r O$ `; s
- int tryNum = 15;0 M" v7 p; x) k& Q' H5 l
- Serial.print("Connect WiFi");
h" U3 O! J3 Y - while (WiFiMulti.run() != WL_CONNECTED) {7 n* \- @; |( \- ^9 q* y: \0 E8 S
- digitalWrite(2,0);4 K g+ J/ ^% |: N9 N) Q; j
- delay(200);
$ j5 S/ U- Y6 @, \% U1 H - digitalWrite(2,1);! f6 u* _. K8 u$ x. w: ?% ?+ q/ }
- delay(300);9 l" C$ ?+ t8 h% ]7 S
- Serial.print(".");
+ T, c; _$ s, X% a2 J# G( r F - tryNum--;$ L4 W2 H% x" f* q
- if (tryNum == 0) {
% A7 u; w9 X" y" B; r - // 1min
, V. m( G1 i) @; h4 I9 j: H$ d) i8 G - // ESP.deepSleep(60e6);
% K! D5 _0 x1 W: L - ESP.deepSleep(0);
* \' \2 h. a4 J - }
7 u3 D4 D% C& O3 S! E - }: b0 Z6 u5 R" e( x; h4 e
- Serial.print("\r\n");4 V: ?+ u3 Q9 s3 ]" f2 v! i$ l; V
- digitalWrite(2,1);" l* F I5 G: ?* `+ z& q
- Serial.print("IP address : ");
3 W- ` I, x1 w$ { - Serial.println(WiFi.localIP());
$ f0 H4 T/ h. s1 g, Z% r: V8 s - server.on("/", HTTP_GET, [](){
* n- J8 W. H. ? - server.sendHeader("Connection", "close");
+ A& V$ G' h% [6 m! Y - server.send(200, "text/html", serverIndex);( G; O3 z* }' K$ p$ H( F3 i1 a
- });
1 ?7 y) @! S3 ^4 k6 m2 C - server.on("/update", HTTP_POST, [](){
B$ Z/ ?; T `7 e+ g Z2 B( G: T! X - server.sendHeader("Connection", "close");
* t9 v2 r6 N, b - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 h7 F+ n7 L4 B! w5 E+ \
- ESP.restart();4 G5 J/ s2 A- K
- },[](){
9 o1 M) \/ s6 H4 o5 V4 J) T2 ` s( x - HTTPUpload& upload = server.upload();( W1 W! T; B. y" o1 W
- if(upload.status == UPLOAD_FILE_START){5 l# @+ K8 Q& X/ ?/ {( Z- P
- Serial.setDebugOutput(true);% K1 t9 ~4 {3 p* r
- Serial.printf("Update: %s\n", upload.filename.c_str());
6 {) {# ?5 ^0 [/ ? - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 E" N( P! p0 w$ S) R: M
- if(!Update.begin(maxSketchSpace)){
$ O8 e: [' q, I* u1 J* a6 |4 | - Update.printError(Serial);
/ N; L0 {$ d$ A' s! {% G - }
2 h+ i' g' T1 v' h# p8 J. y - } else if(upload.status == UPLOAD_FILE_WRITE){
9 h. N" I: T1 q3 F+ ~( M0 m4 ?, W - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 y* _0 H% L, Y# b - Update.printError(Serial);
: E# N" x% v8 S- U" { - }
. e/ c% L$ Q% P7 ?5 Z - } else if(upload.status == UPLOAD_FILE_END){; Y7 |6 r6 \- O! P. G s5 d8 H
- if(Update.end(true)){
3 a" T. m F- P+ Z Y8 j* a, H - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) z8 k* J! g& w a4 _ - } else {+ _: p# f* T2 `4 W" X% n1 o# a
- Update.printError(Serial);
0 ~3 w- b, y8 L' B/ S/ t" K - }
5 {$ k1 Q. C1 E" D- [ - Serial.setDebugOutput(false);
$ E' S7 w, U7 I( W' o3 d7 A - }
( z7 g2 z: r2 I1 o - yield();( z P- a1 k- S& h) s4 Y5 E; ?
- });7 X( V5 K4 D! Z) r/ a: v
-
, h) W5 S/ P2 F/ W: k+ I. E4 { - digitalWrite(2,0);
! R( ?: [+ g( C - mainAction();! R1 S( k' t* t9 f& m$ F. O% F8 \
- if (digitalRead(0)){
) _% ]7 ~- E% ?9 @ c7 p/ K - ESP.deepSleep(0);3 b$ W w' T* x9 m
- } else {1 i: x# w# M: l$ f$ J7 }
- server.begin();% W0 f, k8 M* O' y9 g: U
- }
' H. a$ A5 Z) |* F - }) [9 k5 \6 r& ^. D/ L% R) W+ A
- void loop() {
+ [+ ^2 x5 l- S5 } - server.handleClient();
' r8 B) w, z4 h& G. X - delay(1);! r; f1 `& Z1 k- ]9 y$ v
- }
$ y0 F' a: c# c, m6 R. M/ ^; L- l - String doGet(String url){! F- e! h* D$ u; U" [7 E
- if ((WiFiMulti.run() == WL_CONNECTED)) {. z! D: [( t" _2 T5 q$ Y2 c/ e
- HTTPClient http;
1 F" k3 u: i- j - Serial.println("[HTTP] begin...");
8 U% Z: C) S1 L: f2 I7 j' W - if (url.startsWith("https")) {, j5 V; D$ c( r: I) w" R
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 G4 m' ?& J$ ^5 K
- } else {
8 o! ~% Z3 Y0 G0 k9 Z7 s8 [ K - http.begin(url);0 F1 E" k3 t4 a
- }
) B( n @: R4 b4 J" o! N( e+ j) l - Serial.println("[HTTP] GET...");
' Z& J" N, d0 U' n8 ?$ \* V2 a - int httpCode = http.GET();
# j0 b% i$ [: N0 z - if (httpCode > 0) {
: X9 {* d( l, L- n - Serial.printf("[HTTP] code: %d\n", httpCode);
& e3 |; ?9 Y, [5 J* y. p* u - if (httpCode == HTTP_CODE_OK) {+ [9 @& q9 |9 q5 W- _+ M: b8 H
- String payload = http.getString();7 D3 z9 S% p: W1 z W
- Serial.println(payload);2 @# W c( D1 Z ]
- Serial.print("\r\n");: W) |) ?3 }6 K0 C- W: _. Q' q; o1 K$ r
- return payload;
. m A3 j% v: O - }
2 e( |" v9 Q ~5 [) k - } else {4 D( `& }5 C& o1 i
- Serial.printf("[HTTP] GET... failed, error: %s\n",
$ K- q3 {0 I9 h' c5 J - http.errorToString(httpCode).c_str());
9 s K) M- B- H1 T$ U - }
( e% b/ i8 u# \ R9 \& f* M - http.end();
4 e5 q- {- V9 ]' c! T" W0 _9 V - return "";" W( M0 p' i! q; ~, q
- }
( Q+ r' Z+ |1 c$ h - }
/ m9 `; ]# `! ]4 x4 A- ] - void mainAction() {5 W! @- ^) o' x# `4 F
- // 发送请求
, F: _$ F2 f& H9 Z( B - doGet("http://google.cn");4 w( I p* ]9 e9 \+ ^+ B5 [
- }$ J7 J7 B) N$ @5 `* X
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