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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 w3 @( b* Q; r! Q+ s( s5 z
- #include <ESP8266HTTPClient.h>; |/ S; t! ~! K) h5 l4 {* ?* p
- #include <ESP8266WiFi.h>- a! o" M7 j& I
- #include <ESP8266WiFiMulti.h>
* z4 A6 k; U% A - #include <ESP8266WebServer.h>
$ e/ W3 W0 p; e2 ] - #include <arduino.h>
& M4 j; d; J0 A7 E - ESP8266WiFiMulti WiFiMulti;( ~4 {! r% R1 t9 L. Z3 ]( {. b
- ESP8266WebServer server(80);
% u4 l1 v$ s! z) D- n6 f# _ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
7 o8 l ]( }. F - ADC_MODE(ADC_VCC);
1 l# Q2 ^; r) C2 ]# k - void setup() {
, a* T- \2 T6 n" Y" b; @ - Serial.begin(115200);
0 `% H9 @) g, M$ g4 t0 g+ Z - Serial.print("\r\n\n");
- O3 i$ f5 d5 Q2 m7 r - pinMode(2,OUTPUT);6 U2 q0 w5 d! D+ v
- // WIFI
8 o/ @9 j+ R" [1 y - WiFi.mode(WIFI_STA);
& G) v0 q8 {" O0 M - WiFi.hostname("Sparkle");2 Y/ E! |. L3 u1 H3 O
- WiFiMulti.addAP("wifi ssid", "wifi password");- b! m6 w! `' M4 N5 k; y( Q
- int tryNum = 15;
) u6 l' |% C" n9 w6 j - Serial.print("Connect WiFi");
/ `+ t/ `( Z4 z: n) D% I1 ? - while (WiFiMulti.run() != WL_CONNECTED) {
2 G2 x+ [) F- G/ V g - digitalWrite(2,0);0 R0 J! O) y2 A% A! k% b5 r
- delay(200);
9 K3 b5 Y1 Q% }: ~. m6 [# i - digitalWrite(2,1);$ N1 U$ n4 c5 X7 B
- delay(300);$ G% U+ X7 x' k0 Y5 \$ Z! m
- Serial.print(".");
: e( V4 P* O# ?% I9 R# r - tryNum--;! {! j, X+ D$ K# Q0 j$ C$ U m- L
- if (tryNum == 0) {
9 i, G7 X. Y1 N3 q* w - // 1min
5 M) z2 R2 @0 c2 g/ K/ L4 |% b* o# m - // ESP.deepSleep(60e6);
9 ^4 C4 U& M) L6 ?; {, S/ W1 y - ESP.deepSleep(0);( D" k9 I. h$ g
- }) x* @) x4 U0 X6 W. I* M' j
- }- o/ U* b D" |" y3 l1 _1 e
- Serial.print("\r\n");5 x- O8 {# U4 P& z8 a. _- T
- digitalWrite(2,1);. ?3 c G$ w. n: q% \
- Serial.print("IP address : ");
3 U/ w, T/ K% z: Z0 p0 R - Serial.println(WiFi.localIP());( b( q% u( S! ]; G
- server.on("/", HTTP_GET, [](){
5 [3 H$ L) `8 R1 j+ c, v - server.sendHeader("Connection", "close");
2 Z- _$ ?) y- y4 T - server.send(200, "text/html", serverIndex);7 A @% X8 R* z$ H6 N, \2 ~
- });
; @% j! r. C% ^8 A - server.on("/update", HTTP_POST, [](){
+ m/ J) h/ N& j) u - server.sendHeader("Connection", "close");
3 j3 e* `$ r% [; y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
8 L9 L0 a( u7 j2 u! m - ESP.restart();% ~. k( c c& w6 k% ^: Q; M% d
- },[](){1 O8 C& n/ \5 `( s k0 a
- HTTPUpload& upload = server.upload();# \# g7 l: L! ?/ F2 `) O1 j9 x ?
- if(upload.status == UPLOAD_FILE_START){8 L f( U' C. D+ p8 w
- Serial.setDebugOutput(true);
, f" k6 O3 f1 c9 j2 e7 s6 n - Serial.printf("Update: %s\n", upload.filename.c_str());
: J( q+ X) K; w7 z; D% ? - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: R0 ^. y" m& v, \ - if(!Update.begin(maxSketchSpace)){2 Y3 @7 Q7 f9 P& D( S$ p
- Update.printError(Serial);0 a, b9 B( V( ^- ^/ \$ S
- }; R% c; q4 i$ L1 ]5 R% \# C; b
- } else if(upload.status == UPLOAD_FILE_WRITE){/ o; p1 O- z3 [! o% W6 y* Y' i" r& P
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" g D$ V( v. N' q
- Update.printError(Serial);0 y8 z# t5 V z% c* R
- }
$ C0 }7 W) |/ C' q8 {: \7 l# P - } else if(upload.status == UPLOAD_FILE_END){5 Z$ }! @/ Z3 a/ o- W; Y
- if(Update.end(true)){8 T2 N( L* _8 s# m" I
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( x5 A, e5 h9 K1 \) n( a Z; N - } else {
1 @" O, W; c9 w! O; \ - Update.printError(Serial);7 I, B& i% K* G- }7 T% `8 D
- }- J' @7 G$ O5 h# R
- Serial.setDebugOutput(false);
+ N6 Z& M5 T5 c+ ^; @9 a. b - }
1 ]' D9 j, L+ ?, ~5 v - yield();
8 \( D6 H) r8 ?$ F6 h% f - });
4 q. L6 k) I' N! ? - 2 ^! M+ A1 Z: S: {& K& _
- digitalWrite(2,0);' I+ J3 ]* D7 G1 \" f# S R
- mainAction();" b- l/ c6 t7 k, f# a/ M
- if (digitalRead(0)){( b9 T: N3 d) u/ s W1 k
- ESP.deepSleep(0);
: V+ Y D! N8 l8 F( |. v - } else {
- i1 W5 p' q( ~* \9 _ - server.begin();
, `$ }: h) p; K' X7 H$ ?& {1 h' K6 G5 i - }
% j5 n" D3 s$ M" ^4 i - } E p. G6 E2 f( g$ H- v
- void loop() {% [( @$ V! j/ u! |: ?% S6 H
- server.handleClient();2 H4 W$ ]3 F8 G+ F' @& Z0 O
- delay(1);4 B% k" E0 g* u( B8 E
- }
& n- O8 w2 m/ r+ m3 D' ` - String doGet(String url){1 T4 i' M- D3 O" |8 J- [/ l( Q
- if ((WiFiMulti.run() == WL_CONNECTED)) {
5 f& G. ^+ q& j6 O5 j - HTTPClient http;
; J8 q5 S, a) H* i - Serial.println("[HTTP] begin...");
; l- ~; @8 p1 h7 @ - if (url.startsWith("https")) {
4 g8 @) ^# V* q/ s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
$ K( [( V( k! F+ U0 v - } else {0 ?9 |% }, b7 d9 g! U+ u
- http.begin(url);
9 O" ~( F. l8 m$ J$ l x - }
% H7 y2 S4 u5 [7 U& s - Serial.println("[HTTP] GET...");
1 i6 V# b1 j( b& L2 K - int httpCode = http.GET();# X- j4 N, j8 `+ z/ T% g
- if (httpCode > 0) {
`0 u7 }* S: Q+ ]$ c - Serial.printf("[HTTP] code: %d\n", httpCode);
7 P4 x- U- {+ \1 G% L- c( T - if (httpCode == HTTP_CODE_OK) {$ P) a( b$ t) D5 ]' V T4 Q* B' i
- String payload = http.getString();
. }. V" o( e0 A9 c" \7 L - Serial.println(payload);- Q' C4 f4 j) |* Q
- Serial.print("\r\n");, E6 r$ N- R0 f, t# @
- return payload;. J' z9 ?$ ~# O9 \# ~. o9 W
- }# u: ~' G+ G2 d' N0 L Z
- } else {2 H8 q3 s7 b4 A& @9 y
- Serial.printf("[HTTP] GET... failed, error: %s\n",
6 E7 u3 v& V" a( x7 } - http.errorToString(httpCode).c_str());4 Z& o% j Q! V5 V+ {( J
- }9 x+ f! y& g$ b, Z% U
- http.end();
7 @2 V& Z9 r1 l p+ z8 O) P, K$ F7 V3 ]& U - return "";
: d4 h2 y9 p; t2 Q - }
' B3 P4 ^( Q$ q* F9 i$ j - }
" y6 ^+ t: G! V" t& n+ q - void mainAction() {
& H( X W5 ~6 ~- Y - // 发送请求) P+ [' i1 k" l0 G9 v
- doGet("http://google.cn");! N) B/ j) d0 s& @" \
- }
$ g6 }7 c8 @6 Z7 ^5 T& q8 v
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