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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)1 N$ n1 ?' n B1 l% W0 l
- #include <ESP8266HTTPClient.h>
1 S( q" q( \, ?5 L9 y - #include <ESP8266WiFi.h>+ l4 t+ }4 Z" {
- #include <ESP8266WiFiMulti.h>+ \* r+ ]- d' [ m
- #include <ESP8266WebServer.h>
4 W4 b5 D# ?8 L - #include <arduino.h>
2 C* D$ g/ h) M* i - ESP8266WiFiMulti WiFiMulti;# r7 V9 |6 k3 L8 q9 V- R- ~; c
- ESP8266WebServer server(80);
) N0 T i8 l: K: t - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( F2 F. T) n& |0 o9 @
- ADC_MODE(ADC_VCC);0 |+ J1 G/ _. l$ C
- void setup() {
6 A' \9 J- e% R6 b - Serial.begin(115200);
2 }6 r# Q$ R2 O6 a6 W - Serial.print("\r\n\n"); o$ A8 c8 ?, N# M4 x& S
- pinMode(2,OUTPUT);$ {! J$ `+ b- ?9 j
- // WIFI' _' N7 K8 r" T4 \ g
- WiFi.mode(WIFI_STA);
8 M9 i- d7 K3 K- K% v( z) d' R3 m - WiFi.hostname("Sparkle");
7 ~- g7 U" a* z2 A - WiFiMulti.addAP("wifi ssid", "wifi password");1 R7 J5 n: Y) F# w% ^5 ?
- int tryNum = 15;6 [; z: f8 Y: z( B
- Serial.print("Connect WiFi");
; k3 ^7 p) p6 l! i5 z& ~ - while (WiFiMulti.run() != WL_CONNECTED) {6 v* F3 t4 E3 Y" `4 L
- digitalWrite(2,0);
* \5 ]/ p5 G# G& d! c - delay(200);
, \" c/ D# I0 J* u' V, q+ ]/ g - digitalWrite(2,1);
2 Q0 }1 c! I! Z - delay(300);8 s7 z: ^( @/ A% I' Q
- Serial.print(".");
0 F2 h; a( x* a) ^$ R) R" T - tryNum--;7 f/ O/ `3 r% ~- n' v z
- if (tryNum == 0) {
Q: j- A8 H J$ c - // 1min
# S. ~/ E+ E& f. r! h - // ESP.deepSleep(60e6);
. y5 U$ _1 k3 N( t% ]" U8 E, `5 G - ESP.deepSleep(0);
; ?' `) ?6 b" x2 G - }
; W. w3 { S/ l - }( s8 M e3 w( i' k1 `8 |2 X8 t) d0 w* ^3 k* @
- Serial.print("\r\n");: s" j8 R' u# g
- digitalWrite(2,1);! k5 M2 V1 i$ R" G* F6 F
- Serial.print("IP address : ");2 J# `7 C6 b+ ~% \# Y( [ H
- Serial.println(WiFi.localIP());
5 P# j0 W7 r3 p1 J0 I; S - server.on("/", HTTP_GET, [](){
' A6 g9 ^0 z1 X. p p& D - server.sendHeader("Connection", "close");
: K8 o: R7 p! {' y9 r f - server.send(200, "text/html", serverIndex);
& e8 M4 }/ R: }, J! K - });6 M! _3 M) s" U1 a1 @4 q
- server.on("/update", HTTP_POST, [](){8 c. B( o4 W {" U8 J9 u, K
- server.sendHeader("Connection", "close");& E! u/ N9 ?2 l/ n/ h0 k
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) Q6 s' V, w$ c* _& \ - ESP.restart();/ m7 u$ ^& e P9 s0 s, Q3 `& n
- },[](){) r: M% V; W6 h7 }2 t3 C
- HTTPUpload& upload = server.upload();
# r: R. s; E3 I% h; h1 g - if(upload.status == UPLOAD_FILE_START){
% z$ @* B5 V8 ~, @ - Serial.setDebugOutput(true);
8 o( s# \! D. p3 P# E9 I* V0 f- X - Serial.printf("Update: %s\n", upload.filename.c_str());- |+ e. ^2 @/ k6 X# F; d9 R
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; C6 |, y- c9 S5 a( H; O3 |
- if(!Update.begin(maxSketchSpace)){* j4 D- K; T( ]* e
- Update.printError(Serial);; b' U# B2 n) ~7 H+ Z- y! q
- }) N# p! |- z( q( ?/ a: A5 L
- } else if(upload.status == UPLOAD_FILE_WRITE){8 E1 q9 a1 {9 ]' d" E7 ~6 I/ E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* ^, G6 V3 C9 E0 L
- Update.printError(Serial);
# \" T8 X' e% |& a6 H) { - }
* F9 a8 H& u+ K: E% L/ ^+ d, u - } else if(upload.status == UPLOAD_FILE_END){4 b- Y& I, I$ J3 v8 h4 _
- if(Update.end(true)){
# ?8 L% i0 p+ {3 z2 O$ M - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# ?, z; \# l) A4 l4 p7 w- O# ~2 Y - } else {$ e" `2 a. j$ G. F
- Update.printError(Serial);
* ]. W9 O! }4 P& k$ X - }% Z$ D( V; G0 U, X5 ?
- Serial.setDebugOutput(false);" R# L- m- U7 e' ]
- }& q2 H& V3 j* b# }- l2 a+ h
- yield();! l$ t8 a; k; Z4 j
- });
# n) g0 D: b0 M+ e$ y: |+ U -
7 u; K& L9 _( U4 ]/ t' z - digitalWrite(2,0);5 @ x. U: ?, k4 C0 J* ?
- mainAction();+ B" S+ x1 e6 m9 u
- if (digitalRead(0)){9 [6 d* `7 q( x2 s& ]; o- z. h& ?
- ESP.deepSleep(0);
, h, F! u0 @1 l* s+ e; y$ w - } else {, k5 z! \% E/ A4 y
- server.begin();! V3 K3 u3 o8 E* L) n
- }0 w- q: b6 p2 F6 R2 Q2 t" S
- }5 v* m+ e2 F9 b7 x4 I
- void loop() {
+ r# r- b( c9 w- V7 q& C+ a - server.handleClient();; F$ d: G+ L N
- delay(1);
; o8 x0 @( i- h6 [5 ]8 u; x/ u" l9 ] - }& o# Q. f# }# `0 i
- String doGet(String url){" J* X# ~# o9 v* D4 a7 x* r. I5 e
- if ((WiFiMulti.run() == WL_CONNECTED)) {& d0 f' t, R# B Z' ]( w, A
- HTTPClient http; ~) o% S+ k' f
- Serial.println("[HTTP] begin...");
, A; ^# ^4 U( z6 D3 } - if (url.startsWith("https")) {$ j; P4 S6 [" g: Z* a
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- A; n7 x" O6 v* H( l/ [, C/ P
- } else {' o: p, T j! F& r
- http.begin(url);8 d# O3 J) w6 P) o* W
- }
# s. n5 T+ s2 D( U6 { - Serial.println("[HTTP] GET...");
! d& A* I6 E1 g8 [; S% ` - int httpCode = http.GET();+ K5 C* `' e+ T8 L' \. U
- if (httpCode > 0) { V" f* K% {) O- H! `3 o! S
- Serial.printf("[HTTP] code: %d\n", httpCode);. b# P1 O$ i& r" u
- if (httpCode == HTTP_CODE_OK) {
/ e2 u* p7 Z& [$ S" ~6 N+ e) { - String payload = http.getString();- k5 O3 C' D; T: n: \5 P2 N
- Serial.println(payload);0 h: @) `, b" R# _; o
- Serial.print("\r\n");, {$ R3 n6 P! t* P- a
- return payload;9 N P' z& [7 f) \4 ^1 j9 D$ d
- }0 ~: [$ O3 b& N' j" G
- } else {
% R. a( x% T& D( x' [( p/ E - Serial.printf("[HTTP] GET... failed, error: %s\n",. t$ u$ j0 I) v# L9 N* B
- http.errorToString(httpCode).c_str());4 i9 m% J- S& P! ?; b# T
- }
" z( |( a" H! d p - http.end();& C8 ]5 @& q+ H: b
- return "";$ t6 z& U, A1 y& D% f3 a" U4 H
- }8 {# K& V* X/ I8 i7 s
- }
2 t* e) b, r2 F5 o4 T" e! k# @ - void mainAction() {
+ V4 F$ ]1 C& f/ u3 I( R! W - // 发送请求6 W" k3 N% f Q5 v) r( b7 H
- doGet("http://google.cn");: Z/ J4 C! m/ E" U# E& a
- }' y4 Z! I# |" x; u/ N7 C5 }/ P
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