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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)
. R( J7 E1 ]1 x4 O6 c- #include <ESP8266HTTPClient.h>
9 o/ i6 D9 m+ O Y6 r1 X - #include <ESP8266WiFi.h>
& h! h) i1 w. N6 b' k6 F - #include <ESP8266WiFiMulti.h>! x& I9 a# ?2 N6 v" w& V. |
- #include <ESP8266WebServer.h>$ Y1 E- r4 D/ p8 w* i2 k
- #include <arduino.h>
7 v2 {8 z# D# w8 `" e" r$ k - ESP8266WiFiMulti WiFiMulti;
* G& A6 f( w/ ^ - ESP8266WebServer server(80);
9 n' S7 y4 s, z$ Y+ ]" } - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. ]; h& O4 [+ ]& _* A0 R! a2 e
- ADC_MODE(ADC_VCC);
% R5 T2 @, [1 W5 e6 r8 b# j - void setup() {
; d$ g. M' J9 y ` - Serial.begin(115200);
( d) S6 j9 c( q - Serial.print("\r\n\n");
: o+ \# r0 h1 v+ I) e - pinMode(2,OUTPUT);
' b+ h) i$ f' `' D3 z - // WIFI X/ b/ h* c5 Y4 }, X$ L/ p8 S& [
- WiFi.mode(WIFI_STA);8 M2 S! w( V! A
- WiFi.hostname("Sparkle");
- Q& |1 N u x1 q$ @! R( R - WiFiMulti.addAP("wifi ssid", "wifi password");2 P- ~- u- r2 }. u/ |, K
- int tryNum = 15;3 r; z* c/ }2 x; {5 I
- Serial.print("Connect WiFi");
# x: j) V& o5 x+ X - while (WiFiMulti.run() != WL_CONNECTED) {* `5 x i' v" o! h0 C/ U. q9 D
- digitalWrite(2,0);
( j/ ]. {! J2 ] - delay(200);, g* ~! L1 i+ i& o$ X
- digitalWrite(2,1);
5 u. S1 k$ Y1 D, @! U5 M - delay(300);
! Q. p: }, d2 Y1 M - Serial.print(".");
" C5 ?2 L$ F- q# @/ s - tryNum--;
/ U4 y9 Y$ ?) _: m+ M8 P% q - if (tryNum == 0) {) `, f8 S4 L& ^
- // 1min
: |2 X! w' U: x" F$ v$ m6 e/ ?8 {# }3 ] - // ESP.deepSleep(60e6);# C" A8 e4 N: X9 ]; I% E$ o& p1 Z
- ESP.deepSleep(0);
4 v. U* k- U, V' `! w4 s+ S - }
% U7 o, J+ ]6 j- t! A" K+ y* l - }7 F0 p$ ^1 ^) b. p' l ^
- Serial.print("\r\n");5 b) C0 `; E- r' V7 p
- digitalWrite(2,1);
+ h/ I; U# ^1 D - Serial.print("IP address : "); X4 ]# Q0 j4 g* s2 k
- Serial.println(WiFi.localIP());
4 o+ B* b. d C5 J - server.on("/", HTTP_GET, [](){
) g; T- U& y7 _! o) b; o1 l" \8 C - server.sendHeader("Connection", "close");
0 ~5 Z% X" r5 q - server.send(200, "text/html", serverIndex);
9 s1 B6 t7 H! [- W* R8 B* g - });/ P/ ~& Y5 x0 o, q
- server.on("/update", HTTP_POST, [](){! J# S5 V* Q5 ~+ f' b
- server.sendHeader("Connection", "close");
; p) m3 e+ D3 f8 M1 q( H' g" Z( L - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- t8 q! _) u- m - ESP.restart();
# e6 I7 y5 M$ r, n3 g$ [6 }% l7 N - },[](){7 Y I8 b- ?9 B2 p- J
- HTTPUpload& upload = server.upload();
# j+ V2 T: f- R" y9 F' p; O - if(upload.status == UPLOAD_FILE_START){ M& b5 z+ \6 s
- Serial.setDebugOutput(true);
1 ~: t2 s) e) {$ n, O - Serial.printf("Update: %s\n", upload.filename.c_str());
7 X) _' I0 g( z3 C# D" H- k, d4 J - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 b2 U/ Q1 f' E; N7 Q - if(!Update.begin(maxSketchSpace)){
: P2 z; ~; F9 v6 L: ?. k* K% s2 \ - Update.printError(Serial);, I; y7 Z$ {* o
- }4 a; N- c0 u% p3 u m7 _4 W
- } else if(upload.status == UPLOAD_FILE_WRITE){
& w+ }- l/ }' ? - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 l' d5 U: B" D' U) f, E - Update.printError(Serial);; \, p" n7 o4 s- o0 ? r0 U
- }
. g. F7 @3 c% ]$ e - } else if(upload.status == UPLOAD_FILE_END){
, C1 g. i% c, }/ q) X - if(Update.end(true)){1 m+ `' W y5 k7 ?
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" p1 v8 x0 v6 q - } else {
; _, j% t' H& r8 R5 q. P8 c - Update.printError(Serial); P' s8 e( n/ _5 L' C" v% v4 }
- }) y0 p6 x5 D: A
- Serial.setDebugOutput(false);8 R" E, @0 T) ?; N9 d
- }% c% N' J' M3 B* B
- yield();2 n% Y$ Q$ s G1 Q
- });- C+ v: S# A* ~5 y
- & R; X# I8 e; Y% Y' w
- digitalWrite(2,0);
' w7 a, w7 g" }9 |* d8 N9 s* v - mainAction();7 ~+ E1 i# Q3 Z1 N! O. X
- if (digitalRead(0)){5 f1 V$ T, ]6 A# j9 @, N9 Y
- ESP.deepSleep(0);
# @( D- I5 H4 [9 l5 l - } else {
$ d, g4 `5 l( k& l - server.begin();, @, P" c4 ]3 d" X! v
- }+ H# d$ F; C4 T4 Z& V$ U# N5 ] s
- }
2 O" y2 u/ [5 K9 T4 z* g - void loop() {
' ^' g2 n* F( x* R7 E7 e0 n/ V - server.handleClient();0 r- t8 z7 |2 L) b1 `$ n
- delay(1);. I( @: k# j4 D+ _- c4 S+ Q) y
- }
: f' V/ Q w0 t0 v. B) Q% X) W/ C$ | - String doGet(String url){
! q# _$ t; t# s6 j, V - if ((WiFiMulti.run() == WL_CONNECTED)) {2 n5 h; u& Q: `- M# R& `/ _ b
- HTTPClient http;
! _4 F3 x, [6 `4 I# B - Serial.println("[HTTP] begin...");1 y1 r! @& k) s2 S
- if (url.startsWith("https")) {5 C$ a' ?! O$ `0 ]0 y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 h) i8 a7 l" K1 a
- } else {
8 D5 r6 y% u' @4 X( H - http.begin(url);& L4 |* {2 B4 ]: K9 A: G4 }% [) v
- }: C$ m% Y. Q* b1 Y( g
- Serial.println("[HTTP] GET...");
: l+ ?/ V* D3 L. c. o" K - int httpCode = http.GET();4 `2 L3 e5 w* k1 x: k' i' O
- if (httpCode > 0) {
3 h$ D& `4 Z D. M9 A - Serial.printf("[HTTP] code: %d\n", httpCode);
: D7 [! ]+ K3 ?* J* e7 g - if (httpCode == HTTP_CODE_OK) { K0 ]- e1 I! P
- String payload = http.getString();
2 Y; q/ M3 R" {$ s6 _ - Serial.println(payload);
1 z s5 T3 t7 f# i% ~9 n8 Q - Serial.print("\r\n");
4 Y4 I" o# Z! D) c$ C - return payload;. Y, T: X) ]% d! X
- }3 R% K( ~3 h6 I9 d. F, [4 c- J" L. b
- } else {
; J$ k" ]6 X$ a' U0 C5 \, L9 O - Serial.printf("[HTTP] GET... failed, error: %s\n",
) R% B, u2 g# G$ @% c! N - http.errorToString(httpCode).c_str());
% m! F" H+ P- C- h7 B! } - }
' H) W) h Z, M0 T+ [ - http.end();
+ M% @' S9 T8 w1 c+ B4 g4 d$ i! U - return "";: N6 ~' V. t e
- }, s+ v( i' ^; J, {/ ^; L, G
- }/ p9 `% _" |4 t! n# @! O" G/ F# E3 W
- void mainAction() {- j7 L4 ^4 H4 F, a- R9 d
- // 发送请求
7 _; ^6 T5 i' A, p) y, P - doGet("http://google.cn");
+ ]0 x4 q/ h6 \: S6 D- A - }; M7 U7 u5 d6 N/ a% o
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