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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)" I4 B5 c# c# n: [2 Y; P; z9 w. g
- #include <ESP8266HTTPClient.h>
# M& ~- _% W; H8 } - #include <ESP8266WiFi.h>: ?3 J- ^/ \9 F. W V" ]- e
- #include <ESP8266WiFiMulti.h>0 ~' G6 X7 H+ s! D
- #include <ESP8266WebServer.h>
- u, X& g' Y# `: c, L5 ~2 @ - #include <arduino.h>
* U( K: r2 j6 z$ j, w: @0 t) I; g - ESP8266WiFiMulti WiFiMulti;
1 A' ^ U2 Y. ~, {% C J - ESP8266WebServer server(80);' C8 y9 S+ R) q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 V P$ n+ a1 G+ t8 v
- ADC_MODE(ADC_VCC);% s6 C; _( a: g0 o. M$ @- V: @
- void setup() {
' ~4 ?6 s5 K1 G% o( |& y0 O. j - Serial.begin(115200);
, r {' z0 h: x) m/ g - Serial.print("\r\n\n");7 Q" T' m& R" G" {
- pinMode(2,OUTPUT);
% d# j. U5 F, r7 Z2 j7 b1 m - // WIFI
7 M( j |+ Q2 S( c - WiFi.mode(WIFI_STA);" g( |1 t2 o$ ~2 M9 a
- WiFi.hostname("Sparkle");
1 u! u7 H, r" o - WiFiMulti.addAP("wifi ssid", "wifi password");9 N j {$ {* X9 `" w4 M' E
- int tryNum = 15;9 K6 \% U3 M( o3 G
- Serial.print("Connect WiFi");
' S. ~+ Y; O0 R3 ~7 W/ N m6 B8 k - while (WiFiMulti.run() != WL_CONNECTED) {
8 Y- r. g, {/ A/ s8 ^$ l% p - digitalWrite(2,0);; A z5 u6 c4 c) y S6 Y: R
- delay(200);/ e, v9 K( c" s1 M3 B4 ~' |
- digitalWrite(2,1);
( S. A) X s8 s- O, P* ^0 O7 O7 [ - delay(300);
# B0 `1 u9 ^ U - Serial.print(".");, O5 M- m+ ^8 v2 e1 G% G: p9 n8 k
- tryNum--;' P9 @8 Q" w: w s1 t
- if (tryNum == 0) {
- O: D6 x1 R2 U4 m - // 1min
- X8 K' w6 ^6 V" Q h - // ESP.deepSleep(60e6);
* e# K& a4 K2 C& b# @/ v7 c0 n: e - ESP.deepSleep(0);
2 F; t2 E+ Z+ O4 N8 Z* ] - }
1 x: D: s/ }. u0 h p; U- J$ }5 [+ B+ z - }
3 k6 @1 C0 F) L+ E% p5 a+ a - Serial.print("\r\n");. X" A. v. n3 r& `' o
- digitalWrite(2,1);% k+ ?( Y6 n# E7 C2 L* ]; D9 b
- Serial.print("IP address : ");
/ ?! H, _6 `9 |+ M$ E - Serial.println(WiFi.localIP());' L# ?5 J' e2 s1 c
- server.on("/", HTTP_GET, [](){1 v" s# s" Y- W; \8 o, Y6 M1 {4 d
- server.sendHeader("Connection", "close");: R, I* x- c9 `' P$ l
- server.send(200, "text/html", serverIndex);% e; g% x6 u' u5 y
- });3 l" M1 _+ y' _9 f# O, G/ }
- server.on("/update", HTTP_POST, [](){2 f+ f" c9 N" r5 r3 O8 W2 w. U" B
- server.sendHeader("Connection", "close"); b2 T5 D, Q& O- ~
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ A$ \1 M- a H/ b+ W - ESP.restart();; n4 ^; F0 s4 M) w
- },[](){
5 B! [7 ~/ Z9 n6 @$ m; O9 N - HTTPUpload& upload = server.upload();+ d c9 \6 O4 U2 |/ j i' f% ~
- if(upload.status == UPLOAD_FILE_START){( A7 B# q" ~+ {5 O. @ J- E
- Serial.setDebugOutput(true);
* Z8 {9 e/ t6 o7 }: V - Serial.printf("Update: %s\n", upload.filename.c_str());
; r+ K# b- r4 n4 | - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 n: L1 [( X, B5 z7 N6 c% D - if(!Update.begin(maxSketchSpace)){
* p9 c3 O* v* n+ W# J5 J* g - Update.printError(Serial);
9 A# R1 R7 f+ ^: [6 A - }$ u% `1 L' w* w, s$ r
- } else if(upload.status == UPLOAD_FILE_WRITE){# \" j% l% G$ n( \$ [
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
X* Q( h. V& \9 y5 x; s - Update.printError(Serial);
1 p. q: L# f) ]5 w9 D/ ` - }$ {. m' `2 i L& T5 M+ F% C
- } else if(upload.status == UPLOAD_FILE_END){' `6 N4 z _5 K2 i, ^; i9 N2 S$ |
- if(Update.end(true)){1 J4 r( B/ b8 ]& n
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 s0 V; w$ r3 e/ J* n. o; u0 @5 B - } else {) i7 j/ r% D2 n/ P* Y% k" [
- Update.printError(Serial);+ k! A& N" K. {2 a( n
- }
4 o* Z6 W% E& t - Serial.setDebugOutput(false);' A7 Q" r6 j( T# X% w& g- _" B6 d
- }/ W; w7 ? j& i/ ?3 p
- yield();( R+ [! l8 Q# \. }. H6 Y F- c% E
- });8 x6 b; K& C- O% X/ f
-
5 y& o5 P4 H e, y: \ - digitalWrite(2,0);* z, v( z7 C( w+ m! a; F# E% Q
- mainAction();% _+ X' Q1 U; Y7 W! u6 s! l. d
- if (digitalRead(0)){
! r. H% M& J* b0 b$ x4 \1 ~ - ESP.deepSleep(0);* W* x6 J/ f/ C. [
- } else {
$ W0 Y! k9 t0 N j% [ - server.begin();
& P- A. D( \7 e6 [7 T, |' ]( ? - }' o$ g9 |$ r3 m: P
- }
7 P+ f- z3 ?- G0 k# q' e - void loop() {
7 q1 W0 F: c1 Z& L1 @ - server.handleClient();
. M6 a5 K6 U5 C4 \( N# u% `" J9 }. U - delay(1);( h- n4 U1 ]( L3 t1 o
- }4 K: j* ?- h' @- h I" f8 \
- String doGet(String url){
- {% i; [* y7 b - if ((WiFiMulti.run() == WL_CONNECTED)) {5 n6 c# D% N" `" `2 g( c4 l/ ~
- HTTPClient http;) o) l# S- U7 Z
- Serial.println("[HTTP] begin...");* J0 ^0 Y2 X: Y$ ?6 T
- if (url.startsWith("https")) {% }9 F( s" J' O) v+ p
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' [; V9 c; r' i5 T& Y
- } else { c0 r u* z( p3 f, z
- http.begin(url);
+ c' P& N+ G2 w - }5 ?! J+ f/ X" }( a1 \
- Serial.println("[HTTP] GET...");" y: X+ I- K8 k6 [ R
- int httpCode = http.GET();
8 L' K: s* c9 _* U: k1 T - if (httpCode > 0) {7 U( x2 s( }/ N8 b/ U; G
- Serial.printf("[HTTP] code: %d\n", httpCode);
5 N) v2 J* H8 U& [ - if (httpCode == HTTP_CODE_OK) {
+ o4 n9 F% i$ n2 D) c - String payload = http.getString();
5 K, I1 `! E! v5 R7 l. X - Serial.println(payload);
7 k) | F; T: f9 g. k - Serial.print("\r\n");9 L! b( y9 e% A
- return payload;
- e& _/ [) ?9 F# A: G9 {8 l& |& P% ` - }
( H& k- t! j' {6 A* W. T% d0 v6 C - } else {+ \, R2 N" x8 ?9 U6 z
- Serial.printf("[HTTP] GET... failed, error: %s\n",' l5 ~( Z7 \9 _+ S# r
- http.errorToString(httpCode).c_str());
) |: |/ f8 C, }' z5 x/ J - }
/ l" {6 f( n. Q# s$ c; q0 X$ \ - http.end();3 I; y( K7 T& P6 }; o7 Q
- return "";% s% S6 N7 U* i
- }
1 G' P' _6 n, P; |" c. K7 j1 u/ H - }
# [3 {9 F) ^$ S% ~! T, G3 @ - void mainAction() {
. ?7 [" ^0 R# @2 A - // 发送请求1 L. b3 u" A7 R) z& B
- doGet("http://google.cn");# a; [' s' ^( ^) e) t0 g- H& c8 R8 O
- }8 X1 _7 G' P. T; B" x1 y, t# I
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