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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)
- K: _) u! z& V0 T( `' g& w- #include <ESP8266HTTPClient.h> G- t/ {& ~' r
- #include <ESP8266WiFi.h>* ~+ _- ^4 S/ D; C$ a; s3 ?
- #include <ESP8266WiFiMulti.h>
3 z9 |4 e; B' i9 h0 ?/ f - #include <ESP8266WebServer.h>
; g1 V" H$ }1 Q' Y @! k8 { - #include <arduino.h>9 K6 b' B- u6 p5 p$ k1 Y
- ESP8266WiFiMulti WiFiMulti;
8 m- b, x" D0 I" Z% X0 ^6 F' V - ESP8266WebServer server(80);& y% f, a1 O8 p3 f' g
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# K. s5 A, ~7 w/ G* O9 }
- ADC_MODE(ADC_VCC);
' B* a6 h- p4 i' D6 O0 { - void setup() {& i3 z$ O: l1 k8 S& f+ k l. ]
- Serial.begin(115200);& V/ l1 v6 S3 I) [2 p
- Serial.print("\r\n\n");
: i: f; K2 a& a% W+ y$ w - pinMode(2,OUTPUT);3 G& p; v% m+ f6 `' G6 i
- // WIFI! D; R. D8 s# n- n8 Q8 k" ~! ^
- WiFi.mode(WIFI_STA);
' ^2 ~* A8 s! o4 g - WiFi.hostname("Sparkle");
/ Z4 {1 I) ^& e& W8 {2 m) L- M5 ?/ m/ S - WiFiMulti.addAP("wifi ssid", "wifi password");
* T# o" U6 S1 x6 P - int tryNum = 15;
. @" y/ Z8 e. h) O# V, t! r - Serial.print("Connect WiFi");
& @4 I0 J& k$ E - while (WiFiMulti.run() != WL_CONNECTED) { b- G; s9 k4 I" P; u7 M! c! W
- digitalWrite(2,0);' b: } _; c/ k3 B) ^ m! \5 Z
- delay(200);' _+ ^) y3 \! z) n
- digitalWrite(2,1);( |( r" \. T; N
- delay(300);
9 U) }1 q" N# P6 P4 g" X/ _ g - Serial.print(".");
9 z+ F1 r1 j2 U) u( ]% d - tryNum--;
. Z. H* G4 J$ o( ^" P# U0 v - if (tryNum == 0) {; \- u1 i0 B: C
- // 1min4 E3 m5 Q" w- y6 N( z! a1 _
- // ESP.deepSleep(60e6);
2 i0 f9 e; K3 K4 j: [ - ESP.deepSleep(0);
& K0 E# b, E1 B4 Y - }
2 v; l+ h' l# P - }
# E) W* E! ]2 U# q# D2 B - Serial.print("\r\n");
, j* R& g5 S5 f - digitalWrite(2,1);9 S5 i' \2 O$ w. p2 K( |
- Serial.print("IP address : ");
" x7 y! N* `5 |$ s7 N - Serial.println(WiFi.localIP());+ W+ u0 v5 O8 ?! `1 y
- server.on("/", HTTP_GET, [](){
' R! \8 D7 F8 f2 i2 v1 A - server.sendHeader("Connection", "close");% o+ F; ?3 M% \4 L+ q% g' h
- server.send(200, "text/html", serverIndex);" R* ]9 _5 G" t* k
- });' u( }3 R5 q9 Y+ ~9 v9 L4 p: g
- server.on("/update", HTTP_POST, [](){
/ i, w3 T- p' v# e1 D - server.sendHeader("Connection", "close");
d. n0 Q+ T+ h+ j3 [! z( O0 { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' Q* l+ W$ B0 `9 P# q3 v
- ESP.restart();
: v# j; M( B3 j# U- E0 b. F) r; }5 C# s - },[](){4 i$ \' V8 m% }! |7 I- e
- HTTPUpload& upload = server.upload();
T5 [4 S( b) P! j/ H - if(upload.status == UPLOAD_FILE_START){
; d3 ?* @! W" M - Serial.setDebugOutput(true);
% W& m7 ?. U, L& l& K* s4 j - Serial.printf("Update: %s\n", upload.filename.c_str());
$ V3 G; i9 b J4 U5 S, m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; {" Q* ~3 s1 \1 @7 n- H1 `' j - if(!Update.begin(maxSketchSpace)){
3 W7 ?" t) s% d6 G o, `. e - Update.printError(Serial);
; |# m% g8 X' ~& J, m( k - }+ X5 T4 r3 \. H6 v" p
- } else if(upload.status == UPLOAD_FILE_WRITE){
7 Q- Z1 X. I+ K$ Z/ S# D1 C - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
3 f% [7 k- u3 u. N. v* r8 N - Update.printError(Serial);
$ `2 Z. Q5 x+ v2 J& W+ n - }, J4 i R8 c& B$ K: K% {9 P
- } else if(upload.status == UPLOAD_FILE_END){: @3 M4 U, O" b. s
- if(Update.end(true)){
) @1 V1 U0 } d# U - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ X6 S- t9 j; w+ h$ ~) z2 `7 h
- } else {
; Z8 k& S$ {7 O0 k. I6 _- { - Update.printError(Serial);* q" I O0 M+ z3 o4 Q0 j2 V
- }9 A: I0 A6 J; f0 W2 B9 f
- Serial.setDebugOutput(false);& S. k, t% k; V4 a; e Q5 t* c
- }$ d; T: `6 C+ g
- yield();
3 T, X. T& F5 r: A9 V - });
& k! P N, U5 z8 ? -
6 Z' g) l- N1 F# l3 z1 `3 {2 W - digitalWrite(2,0);
$ B z$ Q! d) K3 v8 l8 V7 m - mainAction();7 c- J6 X% N! b5 `9 l
- if (digitalRead(0)){. D. V4 `9 a9 M! Z, n
- ESP.deepSleep(0);
# u, t% Y5 I5 w& U! h7 d' r - } else {' U: U2 E; @7 X" q( R
- server.begin();3 I% |, f. C7 P2 O+ Y }
- }
4 t( w. b. Y* B" I" [ - }4 m2 ?! c, r% j% e9 M3 w
- void loop() {
7 H, \. B: Z, r& B3 h+ G% M - server.handleClient();' K4 S# ?) J: V, N6 }( B
- delay(1);
# D+ G3 l9 z" @8 o( N/ L - }' n: Y+ B! @; M( k9 E% L
- String doGet(String url){
5 K4 ~; }3 B" a! P - if ((WiFiMulti.run() == WL_CONNECTED)) {* t( v0 s" P" u
- HTTPClient http;2 g' T4 Z) i( Z. A- K- _7 n
- Serial.println("[HTTP] begin...");: g" m2 |8 o; e: C0 V
- if (url.startsWith("https")) {& Z; H" _5 Q' ^' `. g
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% o) V' c- h4 z2 ^ - } else {
& i) ?2 T( j5 x( _1 V - http.begin(url);
0 x5 c( |2 t8 N" A: \) X: c - }
! Y, G7 E' Q, L# p - Serial.println("[HTTP] GET...");( o% ?" Q9 b" S/ P. y- F" k
- int httpCode = http.GET();5 T3 l. P" w/ W$ U/ t' c3 N
- if (httpCode > 0) {4 D2 V( a3 X) ]0 e+ M' o$ {3 q
- Serial.printf("[HTTP] code: %d\n", httpCode);* x, `5 Z$ w) {, H1 E$ @
- if (httpCode == HTTP_CODE_OK) {
4 g) g- N* S+ p: @) S9 b: f- U6 K - String payload = http.getString();: f3 P- g# q' Q0 ~8 L* }
- Serial.println(payload);) \0 {$ f! k1 {4 l+ k
- Serial.print("\r\n");
5 a( C0 ^" b) X/ R, c. I - return payload;
4 C% y& V2 r: g6 ? - }" U2 h+ E1 l. S0 u- m
- } else {
; Q; Z8 }' C5 }# i; Q - Serial.printf("[HTTP] GET... failed, error: %s\n",: A$ g: h% O4 O1 `! Y
- http.errorToString(httpCode).c_str());+ l6 A: y/ e" w
- }3 R/ Q" S, H6 X* j
- http.end();
2 O0 u _* w# C - return "";
_# F% I0 \9 \( u C( a - }
+ E; p$ W6 B9 Z( Y1 E9 y* m - }+ ~% A* P1 r# h: X, {. f2 ^
- void mainAction() {
, A H3 W/ m4 j/ Y - // 发送请求
# i! F* s! L8 x2 o) G - doGet("http://google.cn");" V; J% ?3 t* G3 r' ?3 f, ^
- }
7 T& v) r- k& S. j' ?% Y0 V8 u# |
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