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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)
) U( Q1 Y$ m; S9 `, a8 e, f/ Y5 f- #include <ESP8266HTTPClient.h>
& A6 R# n9 ?, @- c. m, } - #include <ESP8266WiFi.h>: m+ I6 a n( G( p, B7 V3 e) Y9 `
- #include <ESP8266WiFiMulti.h>
1 S! T1 I0 i5 }3 h( t1 g8 \ - #include <ESP8266WebServer.h>
1 ?$ [6 e$ _, X8 {7 j& Y8 ] - #include <arduino.h>
! R" R% P' Z; W5 ~ L - ESP8266WiFiMulti WiFiMulti;; t3 ?: q/ u. S& w& l& h H7 A7 _) ]
- ESP8266WebServer server(80);, D: V. ^6 u# ]9 I9 {# z/ w H
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; ]" P* B7 s- L a* l( _3 }
- ADC_MODE(ADC_VCC);# [" b6 z* U: g% W* b( N
- void setup() {& h. ?( p+ m& z9 ]
- Serial.begin(115200);
" w6 W) P5 f2 i: A1 }; q - Serial.print("\r\n\n");
4 b7 |4 z& m" ?" y- E8 v# U - pinMode(2,OUTPUT);
" J8 K$ ]) W( }+ |1 b - // WIFI, e4 x0 D# }* A7 J7 s5 w
- WiFi.mode(WIFI_STA);8 `6 E/ L4 J% ]- ^- i; u* a4 }
- WiFi.hostname("Sparkle");; [9 H$ Q$ I5 f' K1 j
- WiFiMulti.addAP("wifi ssid", "wifi password");! Z2 p. K/ l6 z! `* X" W( h& ~
- int tryNum = 15;* V. o$ N1 c! G: g
- Serial.print("Connect WiFi");. W7 e6 |) D9 I# }) o% x! c
- while (WiFiMulti.run() != WL_CONNECTED) {
" p; n9 U4 N- M+ S# [- i - digitalWrite(2,0);; q) o) g P. d% N. Z
- delay(200);
) x6 P( m& Q" Z - digitalWrite(2,1);
' ?4 K( e5 B2 z( F! M' B - delay(300);3 Z* s& S$ H& B
- Serial.print(".");
% t, \8 Q% ?4 S4 G a - tryNum--;
& R4 \' m- a) C" Q - if (tryNum == 0) {
( L7 W: M% g3 V% n& W - // 1min1 k# ]5 s/ h m6 Z6 V1 X
- // ESP.deepSleep(60e6);" ]# m4 V1 t7 ^# S8 h9 G( i
- ESP.deepSleep(0);& z! q- V$ V6 J" N& D% ]
- }; Q4 X7 k& N b
- }
4 s# P! Z3 x0 y. U6 y! p& } - Serial.print("\r\n");1 A7 V: @; u# i9 X% N) Q! J0 j& ^* D
- digitalWrite(2,1);
5 V' q" I1 M' q+ ^ - Serial.print("IP address : ");
5 `( ~' \; @& i; z2 o - Serial.println(WiFi.localIP());
# c+ K6 j6 b# w! }9 t/ R - server.on("/", HTTP_GET, [](){
, Y4 m) |3 @ Z% \! B N - server.sendHeader("Connection", "close");3 D; D# W1 l: _1 E3 N
- server.send(200, "text/html", serverIndex);3 q, |$ E/ V/ I" v, ~
- });
7 T' H! g% N% L" P4 b/ I! M4 G* u - server.on("/update", HTTP_POST, [](){" N/ P \, l7 d" E# W8 y
- server.sendHeader("Connection", "close");7 K" z# O, {% q. |
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* n, Q5 S- E! j' u - ESP.restart();/ d" q; l: S8 Q/ v8 v
- },[](){2 k3 t7 n7 K8 \9 B5 p
- HTTPUpload& upload = server.upload();. C" i' @7 u4 k% l8 l
- if(upload.status == UPLOAD_FILE_START){
; b1 O2 a9 s" \ - Serial.setDebugOutput(true); ^9 {9 o7 W- N& _4 U
- Serial.printf("Update: %s\n", upload.filename.c_str());
$ e4 i3 E' O2 w# q. c" W% ]2 { - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
& X5 }7 s& n, M# z - if(!Update.begin(maxSketchSpace)){) a/ e2 A1 I: P6 @2 T6 N
- Update.printError(Serial);
$ A/ r$ {" L' w# U. h" A - }
+ C* t0 X8 ^- T" {0 z3 X - } else if(upload.status == UPLOAD_FILE_WRITE){
# R/ b7 _8 P* R' J' N$ ] - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 G( L2 C9 J3 c, Z
- Update.printError(Serial);4 Z+ ?$ \ R2 f$ a# W1 r
- }% J/ W' U1 u* Y+ z: c; @
- } else if(upload.status == UPLOAD_FILE_END){9 L$ Q" Y! o! x& r* }
- if(Update.end(true)){
; E N0 M* `8 F0 _* ~4 x6 | - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
& Z9 Z2 M. f6 n; ]) ?& K* q - } else {% e* R T+ z! I* i, z
- Update.printError(Serial);1 F* r8 [( f8 c
- }
t- H+ {" B3 b8 G: Z7 n - Serial.setDebugOutput(false);8 h" o5 _" q: h/ [$ m2 R$ ?8 o& E8 c
- }- h% K# b2 E" q& ^: C# ]
- yield();
5 a6 G% {3 ~/ z& ]6 ~; |2 o0 } - });
3 | J. U/ _$ C" u$ W4 f" o5 { - * z* |$ O5 w. k& t3 W4 a3 |0 d6 x
- digitalWrite(2,0);" m v- e+ T3 B* p
- mainAction();
" U3 r7 W/ S$ ?) D) e) a - if (digitalRead(0)){) r4 e1 P6 f9 f% f9 w
- ESP.deepSleep(0);! t5 L( T6 U8 w, Y" Q. L
- } else {! T- [7 @6 s' H V
- server.begin();
4 i: C5 t0 T' O3 x - }
5 E+ t+ A N9 |4 K6 C) [ - }
8 u! I! D. d2 H - void loop() {/ P3 _8 G4 ~1 S# l3 `* Z% H
- server.handleClient();6 s {! \) |+ Z; y& x
- delay(1);6 ^+ o* t! [/ e0 T# L' I6 h
- }# u3 `7 Z9 Q b. i( B
- String doGet(String url){
D) t/ t7 ]9 o& Q$ T$ u - if ((WiFiMulti.run() == WL_CONNECTED)) {+ m. J' P9 W" j% r; b5 M3 F
- HTTPClient http;9 {7 {3 Y& p6 C& \1 T4 I6 c2 ^
- Serial.println("[HTTP] begin...");
) `" K0 h% G6 X/ n$ X1 Z - if (url.startsWith("https")) {
% ]6 H4 `% P; S o$ {. K8 _ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ }: }9 e# r8 } Y( L - } else {9 A# ~+ I" V; ]! |
- http.begin(url);) x& m" Y: ?1 {5 k" z- u1 l/ U
- }) h8 i8 A. K8 S |
- Serial.println("[HTTP] GET...");
0 t3 v, E7 F: M+ Z! D - int httpCode = http.GET();% v/ ^- b- j) h0 P. f2 H
- if (httpCode > 0) {0 f5 A3 {0 f, y' }: r' c( M
- Serial.printf("[HTTP] code: %d\n", httpCode);
# F) k) K; _: ]% R# w' g - if (httpCode == HTTP_CODE_OK) {; `( g3 Z9 }0 ]! q# y# F* G6 J1 E
- String payload = http.getString();
' B* S5 ]/ J/ ]6 I4 w* [ - Serial.println(payload);2 P3 |7 o- t& u9 F) S' @# |% B
- Serial.print("\r\n");. x O H1 V+ L2 s9 |" W# p' h
- return payload;& ^, L2 m, |3 M) o! T2 v1 k' i$ f' E
- }
. h( p/ J5 `7 r% m+ ~ - } else {/ d5 _7 _! o, Z, f" |8 @
- Serial.printf("[HTTP] GET... failed, error: %s\n",4 B- c. I/ w7 q; \& Y1 P
- http.errorToString(httpCode).c_str());
8 \( S* G: D( E( U5 b4 P0 w - }6 K" S( W6 j- L( v( Q# E9 [
- http.end();
+ V* W. ?, S2 J - return "";3 \5 n; G% J$ _/ h# i
- }/ b1 x7 P* p; X. P- M9 D4 S# ?( y% P
- }! X) c* `! o7 W0 |9 [" T
- void mainAction() {
5 t* [2 [9 s a( I - // 发送请求2 _' @' L( H1 f+ s8 X
- doGet("http://google.cn");
- p. h' F% j/ v$ `' ~, S3 x - }
: G7 a+ e, V; w9 t7 K
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