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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; D& P1 {: x! L
- #include <ESP8266HTTPClient.h>' N/ n- G3 o. l# q* N
- #include <ESP8266WiFi.h>
' O( J' q/ ]4 D5 e - #include <ESP8266WiFiMulti.h>
( o% F/ c. K7 O. d - #include <ESP8266WebServer.h> v! h& l; M/ I' r3 h C
- #include <arduino.h>" [' F6 k( L p# X% f
- ESP8266WiFiMulti WiFiMulti;
; K* L6 d y1 m' P! U - ESP8266WebServer server(80);
4 x# G2 h: f4 i, q( V* P7 Z) Z# X - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
1 P& ^) Y; o: s - ADC_MODE(ADC_VCC);
0 G8 F1 A1 \4 G1 u) ?, F e - void setup() {- a$ @2 Y N [
- Serial.begin(115200);0 R- S! a) C. ? z* I
- Serial.print("\r\n\n");
& x0 x8 D: \. ` G* O - pinMode(2,OUTPUT);
) G0 p- o. h; |& B% Z5 U' e - // WIFI; ~/ Q6 t. c$ e" i/ s2 o
- WiFi.mode(WIFI_STA);2 _% d' }' J# ^
- WiFi.hostname("Sparkle");! Y) t. r+ ~3 o+ w! w# ~* d8 P
- WiFiMulti.addAP("wifi ssid", "wifi password");
+ x5 n3 C6 [4 ~) l. C0 h - int tryNum = 15;
( e j4 d. G/ L2 T - Serial.print("Connect WiFi");2 G5 H( J& N. l9 B& O! c" i$ a
- while (WiFiMulti.run() != WL_CONNECTED) {9 Q% |3 v. H" o! \7 m( M6 ~- O- p
- digitalWrite(2,0);9 v1 V/ ?* ^+ q. M" O8 H
- delay(200);
( D- A( t$ m. S3 G# C$ A, Q - digitalWrite(2,1);0 i) e; n9 [! D {
- delay(300);
/ S6 i5 S) n2 P8 W- w6 H% n( S+ P - Serial.print(".");9 N+ s& t+ ` n# }- q
- tryNum--;, V1 E. C5 J4 G
- if (tryNum == 0) {
8 Q0 } `" F8 W) g0 P - // 1min
8 k+ L; l( r/ h2 a6 C1 @/ O - // ESP.deepSleep(60e6);
& M, n3 x- S/ g4 ^7 R8 I2 l - ESP.deepSleep(0);7 X% U4 `0 |6 `4 U0 ?
- }& ^: Q+ d, E' w2 B7 ~% K9 q
- }
& |1 k1 u3 }( L8 {) [" ` - Serial.print("\r\n");; a. Y. _9 D4 Z
- digitalWrite(2,1);
3 J* N! L( R& Y2 `- P - Serial.print("IP address : ");! | k; d3 C( M% E2 e
- Serial.println(WiFi.localIP());0 v$ D# ~: t7 {% ~, [2 }( g/ O
- server.on("/", HTTP_GET, [](){
- B1 _. y+ g2 [ - server.sendHeader("Connection", "close");
8 r( T: } p% u* J& `% X# C( v - server.send(200, "text/html", serverIndex);
l8 [- U4 U3 R% c5 m4 B# v - });
# J- l$ o N& f) ? - server.on("/update", HTTP_POST, [](){; }* {! [/ M/ _+ O H8 K
- server.sendHeader("Connection", "close");
, U' Y0 h; a/ w) ^5 W - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. n0 T+ Y" B$ a! l
- ESP.restart();9 a+ C. g6 q/ {. _: o
- },[](){9 D' @( Y; [3 k- P% F( a, o M
- HTTPUpload& upload = server.upload();2 z. i% E" F# } f* d6 ]) m
- if(upload.status == UPLOAD_FILE_START){1 T- Z0 }: y9 u5 N
- Serial.setDebugOutput(true);6 b* a+ j( E p
- Serial.printf("Update: %s\n", upload.filename.c_str());" h: I1 [& g* _
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;3 N) ^, B2 W- `6 X$ x8 F
- if(!Update.begin(maxSketchSpace)){# v# r8 u3 ?0 M
- Update.printError(Serial);
* {1 n. ~& h8 u" W: t; J( Y - }. z; V, d# _+ h/ ~5 ?' u
- } else if(upload.status == UPLOAD_FILE_WRITE){
" o3 |# ]9 Z% D; ]# M - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){3 y+ G7 @, E O2 D4 Y5 c. P
- Update.printError(Serial);
( }% l3 i( @: b' ^ - }
" Z1 I" w( c! L* Z2 a7 | n - } else if(upload.status == UPLOAD_FILE_END){3 ~6 I6 m N. o# T8 o+ }
- if(Update.end(true)){+ c* i8 L# T- e Q' ?) F: P
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, X8 h. p1 l' z5 _- c
- } else {, ^/ X/ x2 a a0 k/ q
- Update.printError(Serial);& r; M3 E$ l& W; V
- }8 _' F: E7 b# c" l% P% @! K- G
- Serial.setDebugOutput(false);
/ Z0 V# x; {% n! \1 { - }$ P& n( X& Z2 v; h+ }* y
- yield();3 M: {3 D/ b) e# g9 Q& m, X0 G
- });
- X3 I# G% r: ^# w+ I+ ] - , C/ z& @ s/ ^
- digitalWrite(2,0);
: e$ a1 Y6 p( R% Z. C" i; k$ V% ` - mainAction();0 N1 S8 j, s% g" P* ~3 p" V# v
- if (digitalRead(0)){
) [# f# R( p4 m% R% E1 U0 N - ESP.deepSleep(0);
4 o8 G8 i4 @3 _' P - } else {
9 `+ x! J/ m4 c% O - server.begin(); H$ w1 @% T/ Q: B- ?% V& k& Q
- }
2 v. g1 ]2 G3 ^& ` - }
6 x4 e9 S% ~' e: r" Y - void loop() {; Y. | m. t& t$ y+ @ Y% H
- server.handleClient();2 g# M& F% }: N. ?' b
- delay(1);7 U4 T8 G$ \- u4 ]/ W
- }0 A& `4 D9 O5 f3 X
- String doGet(String url){1 U& R4 m- v' D1 W7 C
- if ((WiFiMulti.run() == WL_CONNECTED)) {
: }+ V% q( I; D& X - HTTPClient http;
+ Z g- ~8 t, } q - Serial.println("[HTTP] begin...");
0 \3 l' I3 N& A. t3 ^ - if (url.startsWith("https")) {
$ \; P% s7 e- N3 A# ] - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 h+ R& g o6 O5 a
- } else {
+ `/ j5 c4 L. d - http.begin(url);' x, a$ d& N2 e% x
- }
3 b& C1 e% {9 p b% W: F a - Serial.println("[HTTP] GET...");; r; [; @4 G4 [# `& `$ U4 K0 n9 C( P
- int httpCode = http.GET();
6 ~# d" e( H2 W9 J) i& G - if (httpCode > 0) {
/ n% |% \, {) Y( Y - Serial.printf("[HTTP] code: %d\n", httpCode);
: d+ X' ]' k, [& A. U( z9 c3 ~ - if (httpCode == HTTP_CODE_OK) {
$ C4 K( O6 M7 A+ Y8 o1 b1 G - String payload = http.getString();) U- Q5 i- i; ~$ b/ M
- Serial.println(payload);6 H+ E: Q( _# z* c& K) b
- Serial.print("\r\n");4 t, R" q1 ~ E) j
- return payload;
9 t# l; i( `; c0 y8 ?1 m# P4 y - }
! j# I8 K8 O# M3 { - } else {: U) _# h& K ~% e
- Serial.printf("[HTTP] GET... failed, error: %s\n",3 G0 M- F( l- [+ H7 x$ w8 o
- http.errorToString(httpCode).c_str());* S2 j- d- |% Z# }: k
- }. W6 |' O- r: H7 q/ o
- http.end();
" J- t2 e4 L% g) p( m - return "";
. m$ O: k6 B6 K5 {9 N# W - }+ y8 ?$ F$ K3 b7 l% t1 `1 f, c% O9 v
- }4 P- ?) R1 w* Q& s) ?% I9 s
- void mainAction() {
* o9 t4 H* }& V* u" u6 [ - // 发送请求0 w1 D, e* {% ` S
- doGet("http://google.cn");& t* ?1 P% |% W" d
- }) z8 |! E( N! S- Q
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